CSS named color
Tomato #FF6347
The CSS keyword tomato is #FF6347. It is a light vivid red in the red family. In OKLCH it sits at lightness 0.696, chroma 0.196 and hue 32.3°.
- Relative luminance
- 0.3064
- OKLCH L · C · h
- 0.696 · 0.196 · 32.3
- Best text
- Black 7.12:1
- Hue family
- Red
#FF6347 color codes
- HEX
#FF6347- RGB
rgb(255, 99, 71)- HSL
hsl(9, 100%, 64%)- OKLCH
oklch(0.696 0.196 32.3)- OKLab
oklab(0.696 0.165 0.105)- CIELAB (D65)
L* 62.21, a* 57.85, b* 46.42- XYZ (D65)
X 46.84, Y 30.65, Z 9.41- CMYK (naive)
cmyk(0%, 61%, 72%, 0%)
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.
Legibility
Contrast: is #FF6347 accessible?
Black text on it reaches 7.12:1, passing AAA. White text fails at 2.94:1.
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
7.12:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +49
-
White text on it
2.94:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc −60
-
As text on black
7.12:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −46
-
As text on white
2.94:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc +55
Nearest versions that pass 4.5:1
-
For text on white
#D73D22 4.58:1
Darkening its OKLCH lightness from 0.70 to 0.59 reaches 4.58:1 on white, keeping the hue.
-
For text on black
#FF6347 7.12:1
It already reaches 7.12:1 on black, so no change is needed.
Checking another pair? Use the Contrast Checker.
Studio
Adjust #FF6347 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.
Scale
Shades and tints of #FF6347
Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #FF6347 sits at step 400.
Under each step, white and black text on it; a bold figure passes 4.5:1.
Gamut
How vivid #FF6347 can get
At its lightness and hue, sRGB reaches OKLCH chroma 0.196; #FF6347 uses 100% of it. Display P3, which many recent phones and laptops show, reaches 0.248 there: 27% more.
- sRGB
- Display P3
- Rec. 2020
- Dominant wavelength
- OKLCH chroma
- 0.196
- sRGB edge
- 0.196
- Display P3 edge
- 0.248
- Rec. 2020 edge
- 0.292
- Dominant wavelength
- 602 nm
- Excitation purity
- 70%
- Chromaticity
- x 0.5391, y 0.3527
- This color#FF6347
- Most vivid in sRGB#FF6347
- Most vivid in Display P3oklch(0.696 0.248 32.3)
On a screen without Display P3 the last tile shows the sRGB edge instead.
.accent {
color: #ff6347;
}
@media (color-gamut: p3) {
.accent { color: color(display-p3 1 0.3403 0.2078); }
}Mixing
Mixing #FF6347
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%#FFB1A3
- OKLab50%#FFB6A5
- OKLCH50%#FFBAAB
Black #000000
- sRGB50%#803224
- OKLab50%#632116
- OKLCH50%#632116
Its complement #00B0C9
- sRGB50%#808A88
- OKLab50%#B3958F
- OKLCH50%#B082EE
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #ff6347, white);
color: color-mix(in oklch, #ff6347 50%, white);In use
#FF6347 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, 4.5:17.12:1 Passes
- Link and body-size textText, 4.5:12.94:1 Fails
- Large headingLarge text, 3:12.94:1 Fails
- Icons, borders and focus ringsNon-text, 3:12.94:1 Fails
For text on this page, the nearest shade that passes is #D73D22 4.58:1
Dark page
- Button labelText, 4.5:17.12:1 Passes
- Link and body-size textText, 4.5:16.35:1 Passes
- Large headingLarge text, 3:16.35:1 Passes
- Icons, borders and focus ringsNon-text, 3:16.35:1 Passes
Color vision
How #FF6347 looks with color blindness
Deuteranopia changes it most, ΔE2000 38.5; tritanopia changes it least, 12.7.
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
#8E8143 ΔE2000 35.7
Distinct
Reads as muted amber
-
Deuteranopia
No working green (medium-wavelength) cones
#B5A342 ΔE2000 38.5
Distinct
Reads as light soft amber
-
Tritanopia
No working blue (short-wavelength) cones
#FF3D5D ΔE2000 12.7
Distinct
Reads as light vivid red
-
Achromatopsia
No cone color vision; lightness only
#969696 ΔE2000 27.9
Distinct
Reads as gray
Pairing check
Checked against its complement, #00B0C9. Their lightness contrast is only 1.12:1, so where hue collapses, add a label, icon or pattern.
| Vision | The pair | ΔE2000 | Verdict |
|---|---|---|---|
| Normal vision | #FF6347 · #00B0C9 | 66.4 | Stays distinct |
| Protanopia | #8E8143 · #9DA9CA | 37.9 | Stays distinct |
| Deuteranopia | #B5A342 · #8799C9 | 45.1 | Stays distinct |
| Tritanopia | #FF3D5D · #00BAB8 | 65.1 | Stays distinct |
| Achromatopsia | #969696 · #A0A0A0 | 3.2 | Easily confused |
Harmony
Color harmonies for #FF6347
Its complement is #00B0C9, a light soft cyan, on the cool side of the wheel.
Hue rotations in OKLCH, mapped into sRGB by trimming chroma so hue and lightness stay put.
Open the Harmony Studio- Base#FF6347
- Complement#00B0C9
Complementary
Open in Harmony Studio- −30°#F95D93
- Base#FF6347
- +30°#E18300
Analogous
Open in Harmony Studio- Base#FF6347
- +120°#00BC62
- +240°#7C94FF
Triadic
Open in Harmony Studio- Base#FF6347
- +150°#00B6A3
- +210°#00A6FB
Split-complementary
Open in Harmony StudioCode
Design tokens
Ready-to-paste tokens in six formats. Rename them to fit your system.
:root {
--color-tomato: #ff6347;
}// tailwind.config.js
module.exports = {
theme: {
extend: {
colors: {
tomato: '#ff6347',
},
},
},
};/* app.css — Tailwind CSS v4 */
@import "tailwindcss";
@theme {
--color-tomato: oklch(0.696 0.196 32.3);
}{
"color": {
"tomato": {
"$type": "color",
"$value": {
"colorSpace": "srgb",
"components": [1, 0.3882, 0.2784],
"hex": "#ff6347"
},
"$description": "CSS named color tomato"
}
}
}import SwiftUI
enum Palette {
static let tomato = Color(.sRGB, red: 1.000, green: 0.388, blue: 0.278, opacity: 1)
}import androidx.compose.ui.graphics.Color
object Palette {
val Tomato = Color(0xFFFF6347)
}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.
Tools
Open #FF6347 in the tools
Each opens over this page. More colors live in the Color Library, and every color page is listed on the hub.
- Color InspectorEvery format, its names, contrast and color vision in one panel.
- Contrast SystemBlack and white text on this color, with fixes in both directions.
- Harmony StudioPalettes built from this color, walked to a contrast target if you ask.
- Color Space ConverterThe same color in 34 notations, with its gamut headroom.
- Color Name FinderThe nearest of 1,055 color names by ΔE2000.