#811B03
Closest named color: Maroon (#800000). oklch(39.5% 0.14 33.6), rgb(129, 27, 3).
Aa
White text reads best on this color (10.04:1).
About this color
#811B03 is a dark, vivid red. In OKLCH its lightness is 40%, its chroma 0.140 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Maroon (#800000), ΔE 0.026 away. White text reads best on it, at 10.04:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | vivid (0.140) |
| Temperature | warm |
| Nearest name | Maroon (#800000) |
| Black text | 2.09:1 |
| White text | 10.04:1 |
Values
| HEX | #811B03 |
| RGB | rgb(129, 27, 3) |
| HSL | hsl(11, 95%, 26%) |
| OKLCH | oklch(39.5% 0.14 33.6) |
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 #811B03 | 10.04:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #811B03 | 2.09:1 | Fails | Lc 12.0 | Not readable |
| #811B03 text on white | 10.04:1 | AAA | Lc 91.9 | Preferred for body text |
| #811B03 text on black | 2.09:1 | Fails | Lc -10.5 | 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 900.
-
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
#FDCCC0
oklch(88.5% 0.058 34.1)
-
Step 300
300
#FDA894
oklch(81% 0.105 33.9)
-
Step 400
400
#F77356
oklch(70.7% 0.168 33.8)
-
Step 500
500
#EF421A
oklch(63.1% 0.215 33.7)
-
Step 600
600
#CF2D00
oklch(55.6% 0.202 33.6)
-
Step 700
700
#AF2500
oklch(49.1% 0.178 33.7)
-
Step 800
800
#911D00
oklch(42.8% 0.155 33.7)
-
Step 900
900 (this color)
#811B03
oklch(39.5% 0.14 33.6)
-
Step 950
950
#490F04
oklch(27.1% 0.09 33.5)
#811B03 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) | #3C3400 | 0.148 |
| Deuteranopia (no green cones) | #554A00 | 0.132 |
| Tritanopia (no blue cones) | #8F0018 | 0.040 |
| Achromatopsia (no color) | #424242 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #811B03
#811B03
oklch(39.5% 0.14 33.6)
- #00505D
#00505D
oklch(39.6% 0.069 213.3)
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 #811B03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Maroon #800000 ΔE 0.026
- Dark Red #8B0000 ΔE 0.027
- Brick Red #8F1402 ΔE 0.029
- Chestnut #742802 ΔE 0.032
- Blood #770001 ΔE 0.040
- Red Brown #8B2E16 ΔE 0.042
- Rust Brown #8B3103 ΔE 0.048
- Blood Red #980002 ΔE 0.049
Use #811B03 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.