#581A0B
Closest named color: Reddy Brown (#6E1005). oklch(31.6% 0.095 34.7), rgb(88, 26, 11).
Aa
White text reads best on this color (13.39:1).
About this color
#581A0B is a dark, moderately saturated red. In OKLCH its lightness is 32%, its chroma 0.095 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.048 away. White text reads best on it, at 13.39:1.
| Hue family | Reds |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.095) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.56:1 |
| White text | 13.39:1 |
Values
| HEX | #581A0B |
| RGB | rgb(88, 26, 11) |
| HSL | hsl(12, 78%, 19%) |
| OKLCH | oklch(31.6% 0.095 34.7) |
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 #581A0B | 13.39:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #581A0B | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #581A0B text on white | 13.39:1 | AAA | Lc 99.1 | Preferred for body text |
| #581A0B text on black | 1.56:1 | 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
#FFF2EF
oklch(97.1% 0.015 33.1)
-
Step 100
100
#FFE3DC
oklch(93.7% 0.032 34.3)
-
Step 200
200
#FFCBBE
oklch(88.4% 0.062 34.4)
-
Step 300
300
#FFA690
oklch(80.8% 0.111 34.6)
-
Step 400
400
#FC6F4D
oklch(70.8% 0.18 34.8)
-
Step 500
500
#F23D00
oklch(63.1% 0.223 34.7)
-
Step 600
600
#CC3200
oklch(55.5% 0.196 34.7)
-
Step 700
700
#AD2900
oklch(49.1% 0.173 34.7)
-
Step 800
800
#8F2000
oklch(42.7% 0.151 34.7)
-
Step 900
900
#781900
oklch(37.6% 0.133 34.6)
-
Step 950
950 (this color)
#581A0B
oklch(31.6% 0.095 34.7)
#581A0B 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) | #2C2609 | 0.097 |
| Deuteranopia (no green cones) | #3B3408 | 0.089 |
| Tritanopia (no blue cones) | #620817 | 0.037 |
| Achromatopsia (no color) | #2F2F2F | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #581A0B
#581A0B
oklch(31.6% 0.095 34.7)
- #003943
#003943
oklch(31.7% 0.056 213.6)
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 #581A0B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.048
- Claret #680018 ΔE 0.049
- Chocolate Brown #411900 ΔE 0.055
- Burgundy #610023 ΔE 0.057
- Mahogany #4A0100 ΔE 0.059
- Blood #770001 ΔE 0.068
- Chestnut #742802 ΔE 0.075
- Deep Brown #410200 ΔE 0.078
Use #581A0B 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.