#581D11
Closest named color: Reddy Brown (#6E1005). oklch(32.1% 0.09 33.3), rgb(88, 29, 17).
Aa
White text reads best on this color (13.13:1).
About this color
#581D11 is a dark, moderately saturated red. In OKLCH its lightness is 32%, its chroma 0.090 and its hue 33°. 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 13.13:1.
| Hue family | Reds |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.59:1 |
| White text | 13.13:1 |
Values
| HEX | #581D11 |
| RGB | rgb(88, 29, 17) |
| HSL | hsl(10, 68%, 21%) |
| OKLCH | oklch(32.1% 0.09 33.3) |
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 #581D11 | 13.13:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #581D11 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #581D11 text on white | 13.13:1 | AAA | Lc 98.8 | Preferred for body text |
| #581D11 text on black | 1.59:1 | 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
#FEE3DD
oklch(93.6% 0.031 32.6)
-
Step 200
200
#FECCC0
oklch(88.6% 0.059 33.8)
-
Step 300
300
#FEA794
oklch(80.9% 0.107 32.9)
-
Step 400
400
#F87256
oklch(70.7% 0.17 33.3)
-
Step 500
500
#F03F18
oklch(63% 0.218 33.3)
-
Step 600
600
#CF2C00
oklch(55.6% 0.203 33.4)
-
Step 700
700
#AF2300
oklch(49% 0.18 33.3)
-
Step 800
800
#911B00
oklch(42.6% 0.157 33.2)
-
Step 900
900
#7A1600
oklch(37.7% 0.137 33.5)
-
Step 950
950 (this color)
#581D11
oklch(32.1% 0.09 33.3)
#581D11 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) | #2D280F | 0.093 |
| Deuteranopia (no green cones) | #3C350F | 0.084 |
| Tritanopia (no blue cones) | #610F1B | 0.034 |
| Achromatopsia (no color) | #303030 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #581D11
#581D11
oklch(32.1% 0.09 33.3)
- #003A44
#003A44
oklch(32% 0.056 213.4)
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 #581D11, 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 0.050
- Burgundy #610023 ΔE 0.057
- Chocolate Brown #411900 ΔE 0.059
- Mahogany #4A0100 ΔE 0.065
- Blood #770001 ΔE 0.068
- Chestnut #742802 ΔE 0.072
- Deep Brown #410200 ΔE 0.083
Use #581D11 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.