#581B1B
Closest named color: Claret (#680018). oklch(31.9% 0.09 23.7), rgb(88, 27, 27).
Aa
White text reads best on this color (13.22:1).
About this color
#581B1B is a dark, moderately saturated red. In OKLCH its lightness is 32%, its chroma 0.090 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.043 away. White text reads best on it, at 13.22:1.
| Hue family | Reds |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.58:1 |
| White text | 13.22:1 |
Values
| HEX | #581B1B |
| RGB | rgb(88, 27, 27) |
| HSL | hsl(0, 53%, 23%) |
| OKLCH | oklch(31.9% 0.09 23.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #581B1B | 13.22:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #581B1B | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #581B1B text on white | 13.22:1 | AAA | Lc 98.9 | Preferred for body text |
| #581B1B text on black | 1.58:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FEE2E0
oklch(93.5% 0.031 22.6)
-
Step 200
200
#FECBC6
oklch(88.5% 0.059 24.8)
-
Step 300
300
#FEA59F
oklch(80.9% 0.107 23.9)
-
Step 400
400
#F96E6B
oklch(70.7% 0.171 23.7)
-
Step 500
500
#F13943
oklch(63.1% 0.219 23.7)
-
Step 600
600
#D80029
oklch(55.6% 0.225 23.7)
-
Step 700
700
#B70021
oklch(49.2% 0.199 23.8)
-
Step 800
800
#970019
oklch(42.6% 0.172 23.9)
-
Step 900
900
#7C0D18
oklch(37.7% 0.142 23.7)
-
Step 950
950 (this color)
#581B1B
oklch(31.9% 0.09 23.7)
#581B1B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #2B281A | 0.097 |
| Deuteranopia (no green cones) | #3A3519 | 0.091 |
| Tritanopia (no blue cones) | #610D1C | 0.027 |
| Achromatopsia (no color) | #303030 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #581B1B
#581B1B
oklch(31.9% 0.09 23.7)
- #003B3F
#003B3F
oklch(32.1% 0.055 202.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #581B1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.043
- Burgundy #610023 ΔE 0.044
- Reddy Brown #6E1005 ΔE 0.050
- Mahogany #4A0100 ΔE 0.064
- Chocolate Brown #411900 ΔE 0.064
- Blood #770001 ΔE 0.069
- Wine Red #7B0323 ΔE 0.078
- Chestnut #742802 ΔE 0.078
Use #581B1B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.