#51091C
Closest named color: Burgundy (#610023). oklch(28.6% 0.102 12.4), rgb(81, 9, 28).
Aa
White text reads best on this color (14.93:1).
About this color
#51091C is a dark, moderately saturated red. In OKLCH its lightness is 29%, its chroma 0.102 and its hue 12°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.038 away. White text reads best on it, at 14.93:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.102) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.40:1 |
| White text | 14.93:1 |
Values
| HEX | #51091C |
| RGB | rgb(81, 9, 28) |
| HSL | hsl(344, 80%, 18%) |
| OKLCH | oklch(28.6% 0.102 12.4) |
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 #51091C | 14.93:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #51091C | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #51091C text on white | 14.93:1 | AAA | Lc 100.8 | Preferred for body text |
| #51091C text on black | 1.40:1 | 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
#FFF2F3
oklch(97.2% 0.014 12)
-
Step 100
100
#FFE1E4
oklch(93.5% 0.033 10.9)
-
Step 200
200
#FFC9CE
oklch(88.5% 0.062 12.2)
-
Step 300
300
#FFA3AD
oklch(81% 0.11 12.7)
-
Step 400
400
#FF6480
oklch(70.7% 0.189 12.4)
-
Step 500
500
#FA105F
oklch(63.1% 0.248 12.4)
-
Step 600
600
#D5004E
oklch(55.6% 0.222 12.6)
-
Step 700
700
#B40041
oklch(49.1% 0.196 12.4)
-
Step 800
800
#950034
oklch(42.7% 0.171 12.6)
-
Step 900
900
#7E002B
oklch(37.8% 0.151 12.4)
-
Step 950
950 (this color)
#51091C
oklch(28.6% 0.102 12.4)
#51091C 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) | #1E1E1C | 0.115 |
| Deuteranopia (no green cones) | #302C1A | 0.104 |
| Tritanopia (no blue cones) | #590011 | 0.023 |
| Achromatopsia (no color) | #272727 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51091C
#51091C
oklch(28.6% 0.102 12.4)
- #003231
#003231
oklch(28.7% 0.049 192.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #51091C
These curated palettes and gradients contain exactly #51091C. Open one to see the full color scheme around it.
Palettes
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.038
- Mahogany #4A0100 ΔE 0.042
- Claret #680018 ΔE 0.053
- Deep Brown #410200 ΔE 0.057
- Dark Plum #3F012C ΔE 0.063
- Dark Maroon #3C0008 ΔE 0.063
- Chocolate Brown #411900 ΔE 0.064
- Aubergine #3D0734 ΔE 0.071
Use #51091C 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.