#81251C
Closest named color: Red Brown (#8B2E16). oklch(40.8% 0.128 29.3), rgb(129, 37, 28).
Aa
White text reads best on this color (9.48:1).
About this color
#81251C is a dark, moderately saturated red. In OKLCH its lightness is 41%, its chroma 0.128 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Red Brown (#8B2E16), ΔE 0.031 away. White text reads best on it, at 9.48:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.128) |
| Temperature | warm |
| Nearest name | Red Brown (#8B2E16) |
| Black text | 2.21:1 |
| White text | 9.48:1 |
Values
| HEX | #81251C |
| RGB | rgb(129, 37, 28) |
| HSL | hsl(5, 64%, 31%) |
| OKLCH | oklch(40.8% 0.128 29.3) |
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 #81251C | 9.48:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #81251C | 2.21:1 | Fails | Lc 13.0 | Not readable |
| #81251C text on white | 9.48:1 | AAA | Lc 90.9 | Preferred for body text |
| #81251C text on black | 2.21:1 | Fails | Lc -11.4 | 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 800.
-
Step 50
50
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E2
oklch(93.6% 0.021 28.3)
-
Step 200
200
#F4D0C9
oklch(88.6% 0.042 30.9)
-
Step 300
300
#EDAFA5
oklch(80.9% 0.075 29.1)
-
Step 400
400
#E18274
oklch(70.6% 0.12 29.3)
-
Step 500
500
#D65F50
oklch(63.1% 0.153 29.3)
-
Step 600
600
#C14134
oklch(55.5% 0.166 29.2)
-
Step 700
700
#A63227
oklch(49% 0.154 29.2)
-
Step 800
800 (this color)
#81251C
oklch(40.8% 0.128 29.3)
-
Step 900
900
#6D2820
oklch(37.7% 0.1 29.2)
-
Step 950
950
#401913
oklch(27.1% 0.062 30.5)
#81251C 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) | #40391A | 0.134 |
| Deuteranopia (no green cones) | #564D19 | 0.124 |
| Tritanopia (no blue cones) | #8E0624 | 0.042 |
| Achromatopsia (no color) | #464646 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81251C
#81251C
oklch(40.8% 0.128 29.3)
- #00545E
#00545E
oklch(40.8% 0.07 208.6)
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 #81251C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Brown #8B2E16 ΔE 0.031
- Brick Red #8F1402 ΔE 0.033
- Chestnut #742802 ΔE 0.036
- Dark Red #8B0000 ΔE 0.037
- Maroon #800000 ΔE 0.041
- Rust Brown #8B3103 ΔE 0.041
- Brown Red #922B05 ΔE 0.044
- Blood Red #980002 ΔE 0.051
Use #81251C 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.