RAL Classic color

RAL 6018 Yellow green #68825B

RAL 6018 Yellow green is shown here as #68825B, a widely published sRGB approximation of the printed swatch. It is a muted green in the green family. In OKLCH it sits at lightness 0.575, chroma 0.065 and hue 135.5°. The nearest CSS named color is seagreen (#2E8B57), ΔE2000 10.3 away.

Relative luminance
0.1966
OKLCH L · C · h
0.575 · 0.065 · 135.5
Best text
Black 4.93:1
Hue family
Green
Inspect this color Check contrast

#68825B color codes

HEX
#68825B
RGB
rgb(104, 130, 91)
HSL
hsl(100, 18%, 43%)
OKLCH
oklch(0.575 0.065 135.5)
OKLab
oklab(0.575 -0.046 0.046)
CIELAB (D65)
L* 51.45, a* -17.11, b* 18.15
XYZ (D65)
X 15.58, Y 19.66, Z 12.87
CMYK (naive)
cmyk(20%, 0%, 30%, 49%)

CIELAB and XYZ use the D65 white point; CSS lab() uses D50, so paste the OKLCH or HEX value into stylesheets. CMYK here is a plain formula with no press profile.

RAL and RAL Classic are trademarks of RAL gGmbH, which this site is not affiliated with. The sRGB value is an approximation of the printed swatch; check a physical RAL color card before you specify a paint.

Legibility

Contrast: is #68825B accessible?

Black text on it reaches 4.93:1, passing AA. White text manages only 4.25:1, enough for large text only.

WCAG 2 gives the same ratio whichever color is the text; APCA does not, so its Lc changes sign and size with polarity.

Open the Contrast System

  • Black text on it

    4.93:1

    • AA passes
    • AA large passes
    • AAA fails
    • APCA Lc +34

  • White text on it

    4.25:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc −74

  • As text on black

    4.93:1

    • AA passes
    • AA large passes
    • AAA fails
    • APCA Lc −32

  • As text on white

    4.25:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc +69

Nearest versions that pass 4.5:1

  • For text on white

    #647E57 4.50:1

    Darkening its OKLCH lightness from 0.58 to 0.56 reaches 4.50:1 on white, keeping the hue.

    Compare both in the Contrast System

  • For text on black

    #68825B 4.93:1

    It already reaches 4.93:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #68825B live

Move lightness, chroma and hue in OKLCH, or drag on the map. The map is every lightness and chroma at the current hue: sRGB inside the solid area, Display P3 out to the dashed line.

The studio needs JavaScript.

Scale

Shades and tints of #68825B

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #68825B sits at step 600.

  1. 50#E6FEDB
    White
    1.07
    Black
    19.56
  2. 100#DCF4D0
    White
    1.17
    Black
    17.89
  3. 200#C7E1BB
    White
    1.40
    Black
    14.91
  4. 300#ADC7A0
    White
    1.83
    Black
    11.45
  5. 400#90AB83
    White
    2.51
    Black
    8.33
  6. 500#758F68
    White
    3.56
    Black
    5.88
  7. 600This color#68825B
    White
    4.25
    Black
    4.93
  8. 700#48603C
    White
    6.96
    Black
    3.01
  9. 800#314726
    White
    10.19
    Black
    2.05
  10. 900#1C2F12
    White
    14.33
    Black
    1.46
  11. 950#0B1B03
    White
    17.91
    Black
    1.17

Under each step, white and black text on it; a bold figure passes 4.5:1.

Gamut

How vivid #68825B can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.170; #68825B uses 38% of it. Display P3, which many recent phones and laptops show, reaches 0.199 there: 17% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.065
sRGB edge
0.170
Display P3 edge
0.199
Rec. 2020 edge
0.206
Dominant wavelength
558 nm
Excitation purity
26%
Chromaticity
x 0.3238, y 0.4087
  • This color#68825B
  • Most vivid in sRGB#468D00
  • Most vivid in Display P3oklch(0.575 0.199 135.5)

On a screen without Display P3 the last tile shows the sRGB edge instead.

Use the wider color where screens show it
.accent {
  color: #68825b;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.32 0.5581 0); }
}

Mixing

Mixing #68825B

Each row is the same mix worked out in a different space, with the halfway color at its end. sRGB, which older CSS gradients use, can sag gray or dark in the middle; OKLab keeps the lightness steps even; OKLCH holds chroma and hue as it goes.

White #FFFFFF

  • sRGB50%#B4C1AD
  • OKLab50%#B1BFAA
  • OKLCH50%#B1BFAA

Black #000000

  • sRGB50%#34412E
  • OKLab50%#242F1E
  • OKLCH50%#242F1E

Its complement #886D94

  • sRGB50%#787878
  • OKLab50%#797979
  • OKLCH50%#4B8197
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #68825b, white);
color: color-mix(in oklch, #68825b 50%, white);

In use

#68825B in an interface

A button, a link, a heading, a focused field, an icon and a chart line in this color, on a light page and a dark one. Each check is a WCAG 2 contrast minimum: 1.4.3 for text, 1.4.11 for the rest.

Light page

  • Button labelText, 4.5:14.93:1 Passes
  • Link and body-size textText, 4.5:14.25:1 Fails
  • Large headingLarge text, 3:14.25:1 Passes
  • Icons, borders and focus ringsNon-text, 3:14.25:1 Passes

For text on this page, the nearest shade that passes is #647E57 4.50:1

Dark page

  • Button labelText, 4.5:14.93:1 Passes
  • Link and body-size textText, 4.5:14.40:1 Fails
  • Large headingLarge text, 3:14.40:1 Passes
  • Icons, borders and focus ringsNon-text, 3:14.40:1 Passes

For text on this page, the nearest shade that passes is #6B855E 4.58:1

Color vision

How #68825B looks with color blindness

Achromatopsia changes it most, ΔE2000 18.2; tritanopia changes it least, 11.5.

Simulated with Machado et al. (2009) at full severity, in linear light.

Simulate a whole page What each type sees

  • Protanopia

    No working red (long-wavelength) cones

    #857C59 ΔE2000 12.6

    Distinct

    Reads as muted amber

  • Deuteranopia

    No working green (medium-wavelength) cones

    #817A5D ΔE2000 12.4

    Distinct

    Reads as grayish amber

  • Tritanopia

    No working blue (short-wavelength) cones

    #687F78 ΔE2000 11.5

    Distinct

    Reads as grayish cyan

  • Achromatopsia

    No cone color vision; lightness only

    #7B7B7B ΔE2000 18.2

    Distinct

    Reads as gray

Pairing check

Checked against its complement, #886D94. Their lightness contrast is only 1.05:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#68825B · #886D9442.5Stays distinct
Protanopia#857C59 · #68759630.2Stays distinct
Deuteranopia#817A5D · #6E779326.6Stays distinct
Tritanopia#687F78 · #88727B24.8Stays distinct
Achromatopsia#7B7B7B · #7777771.6Easily confused

Harmony

Color harmonies for #68825B

Its complement is #886D94, a muted magenta.

Hue rotations in OKLCH, mapped into sRGB by trimming chroma so hue and lightness stay put.

Open the Harmony Studio
  • Base#68825B
  • Complement#886D94

Complementary

Open in Harmony Studio
  • −30°#7E7C4D
  • Base#68825B
  • +30°#528570

Analogous

Open in Harmony Studio
  • Base#68825B
  • +120°#5F7B9F
  • +240°#9C696C

Triadic

Open in Harmony Studio
  • Base#68825B
  • +150°#75749E
  • +210°#966981

Split-complementary

Open in Harmony Studio

Code

Design tokens

Ready-to-paste tokens in six formats. Rename them to fit your system.

CSS custom property

:root {
  --color-ral-6018: #68825b;
}

Tailwind config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'ral-6018': '#68825b',
      },
    },
  },
};

Tailwind v4 theme

/* app.css — Tailwind CSS v4 */
@import "tailwindcss";

@theme {
  --color-ral-6018: oklch(0.575 0.065 135.5);
}

Design token (W3C DTCG)

{
  "color": {
    "ral-6018": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.4078, 0.5098, 0.3569],
        "hex": "#68825b"
      },
      "$description": "RAL 6018 Yellow green (approximate sRGB)"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let ral6018 = Color(.sRGB, red: 0.408, green: 0.510, blue: 0.357, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Ral6018 = Color(0xFF68825B)
}

Matches

The nearest match in each system

The closest CSS name, Tailwind shade, RAL Classic paint and Crayola crayon by ΔE2000; under 2 is hard to tell apart side by side. RAL and Crayola values approximate physical colors.

Neighbors

The eight nearest colors on this site by ΔE2000, closest first. Under 2 is hard to tell apart side by side.

Tools

Open #68825B in the tools

Each opens over this page. More colors live in the Color Library, and every color page is listed on the hub.