Tailwind CSS v3 color
Tailwind cyan-600 #0891B2
Tailwind CSS v3's cyan-600 is #0891B2. It is a soft blue in the cyan family. In OKLCH it sits at lightness 0.609, chroma 0.111 and hue 221.7°. The nearest CSS named color is steelblue (#4682B4), ΔE2000 10.8 away.
- Relative luminance
- 0.2352
- OKLCH L · C · h
- 0.609 · 0.111 · 221.7
- Best text
- Black 5.70:1
- Hue family
- Cyan
#0891B2 color codes
- HEX
#0891B2- RGB
rgb(8, 145, 178)- HSL
hsl(192, 91%, 36%)- OKLCH
oklch(0.609 0.111 221.7)- OKLab
oklab(0.609 -0.083 -0.074)- CIELAB (D65)
L* 55.60, a* -20.12, b* -26.28- XYZ (D65)
X 18.26, Y 23.51, Z 45.69- CMYK (naive)
cmyk(96%, 19%, 0%, 30%)
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 #0891B2 accessible?
Black text on it reaches 5.70:1, passing AA. White text manages only 3.68:1, 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
5.70:1
- AA passes
- AA large passes
- AAA fails
- APCA Lc +40
-
White text on it
3.68:1
- AA fails
- AA large passes
- AAA fails
- APCA Lc −69
-
As text on black
5.70:1
- AA passes
- AA large passes
- AAA fails
- APCA Lc −37
-
As text on white
3.68:1
- AA fails
- AA large passes
- AAA fails
- APCA Lc +63
Nearest versions that pass 4.5:1
-
For text on white
#00819F 4.52:1
Darkening its OKLCH lightness from 0.61 to 0.56 reaches 4.52:1 on white, keeping the hue.
-
For text on black
#0891B2 5.70:1
It already reaches 5.70:1 on black, so no change is needed.
Checking another pair? Use the Contrast Checker.
Studio
Adjust #0891B2 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 #0891B2
Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #0891B2 sits at step 500.
Under each step, white and black text on it; a bold figure passes 4.5:1.
Tailwind CSS v3 cyan scale
The real Tailwind palette, for comparison with the computed ramp above.
Gamut
How vivid #0891B2 can get
At its lightness and hue, sRGB reaches OKLCH chroma 0.112; #0891B2 uses 99% of it. Display P3, which many recent phones and laptops show, reaches 0.149 there: 32% more.
- sRGB
- Display P3
- Rec. 2020
- Dominant wavelength
- OKLCH chroma
- 0.111
- sRGB edge
- 0.112
- Display P3 edge
- 0.149
- Rec. 2020 edge
- 0.255
- Dominant wavelength
- 484 nm
- Excitation purity
- 43%
- Chromaticity
- x 0.2088, y 0.2689
- This color#0891B2
- Most vivid in sRGB#0091B3
- Most vivid in Display P3oklch(0.609 0.149 221.7)
On a screen without Display P3 the last tile shows the sRGB edge instead.
.accent {
color: #0891b2;
}
@media (color-gamut: p3) {
.accent { color: color(display-p3 0 0.5706 0.7414); }
}Mixing
Mixing #0891B2
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%#84C8D9
- OKLab50%#98C8D9
- OKLCH50%#98C8D9
Black #000000
- sRGB50%#044959
- OKLab50%#013543
- OKLCH50%#013543
Its complement #BA6B4C
- sRGB50%#617E7F
- OKLab50%#838383
- OKLCH50%#6A9147
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #0891b2, white);
color: color-mix(in oklch, #0891b2 50%, white);In use
#0891B2 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, 4.5:15.70:1 Passes
- Link and body-size textText, 4.5:13.68:1 Fails
- Large headingLarge text, 3:13.68:1 Passes
- Icons, borders and focus ringsNon-text, 3:13.68:1 Passes
For text on this page, the nearest shade that passes is #00819F 4.52:1
Dark page
- Button labelText, 4.5:15.70:1 Passes
- Link and body-size textText, 4.5:15.08:1 Passes
- Large headingLarge text, 3:15.08:1 Passes
- Icons, borders and focus ringsNon-text, 3:15.08:1 Passes
Color vision
How #0891B2 looks with color blindness
Achromatopsia changes it most, ΔE2000 20.6; tritanopia changes it least, 12.5.
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
#7E8DB4 ΔE2000 18.7
Distinct
Reads as muted blue
-
Deuteranopia
No working green (medium-wavelength) cones
#6A7FB2 ΔE2000 18.1
Distinct
Reads as muted blue
-
Tritanopia
No working blue (short-wavelength) cones
#009B9C ΔE2000 12.5
Distinct
Reads as soft cyan
-
Achromatopsia
No cone color vision; lightness only
#858585 ΔE2000 20.6
Distinct
Reads as gray
Pairing check
Checked against its complement, #BA6B4C. Their lightness contrast is only 1.07:1, so where hue collapses, add a label, icon or pattern.
| Vision | The pair | ΔE2000 | Verdict |
|---|---|---|---|
| Normal vision | #0891B2 · #BA6B4C | 48.1 | Stays distinct |
| Protanopia | #7E8DB4 · #807549 | 35.3 | Stays distinct |
| Deuteranopia | #6A7FB2 · #93864B | 40.8 | Stays distinct |
| Tritanopia | #009B9C · #CA5D63 | 53.0 | Stays distinct |
| Achromatopsia | #858585 · #808080 | 1.9 | Easily confused |
Harmony
Color harmonies for #0891B2
Its complement is #BA6B4C, a soft red, on the warm 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#0891B2
- Complement#BA6B4C
Complementary
Open in Harmony Studio- −30°#009693
- Base#0891B2
- +30°#4E86C3
Analogous
Open in Harmony Studio- Base#0891B2
- +120°#B06796
- +240°#918529
Triadic
Open in Harmony Studio- Base#0891B2
- +150°#BB6571
- +210°#AC772C
Split-complementary
Open in Harmony StudioCode
Design tokens
Ready-to-paste tokens in six formats. Rename them to fit your system.
:root {
--color-cyan-600: #0891b2;
}// tailwind.config.js — already built in as cyan-600;
// pin the v3 value explicitly like this:
module.exports = {
theme: {
extend: {
colors: {
cyan: { 600: '#0891b2' },
},
},
},
};/* app.css — Tailwind CSS v4 */
@import "tailwindcss";
@theme {
/* v4 has its own cyan-600; this pins the v3 value. */
--color-cyan-600: oklch(0.609 0.111 221.7);
}{
"color": {
"cyan-600": {
"$type": "color",
"$value": {
"colorSpace": "srgb",
"components": [0.0314, 0.5686, 0.698],
"hex": "#0891b2"
},
"$description": "Tailwind CSS v3 cyan-600"
}
}
}import SwiftUI
enum Palette {
static let cyan600 = Color(.sRGB, red: 0.031, green: 0.569, blue: 0.698, opacity: 1)
}import androidx.compose.ui.graphics.Color
object Palette {
val Cyan600 = Color(0xFF0891B2)
}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 #0891B2 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.