#51101C
Closest named color: Burgundy (#610023). oklch(29.2% 0.095 15.1), rgb(81, 16, 28).
Aa
White text reads best on this color (14.57:1).
About this color
#51101C is a dark, moderately saturated red. In OKLCH its lightness is 29%, its chroma 0.095 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.040 away. White text reads best on it, at 14.57:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.095) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.44:1 |
| White text | 14.57:1 |
Values
| HEX | #51101C |
| RGB | rgb(81, 16, 28) |
| HSL | hsl(349, 67%, 19%) |
| OKLCH | oklch(29.2% 0.095 15.1) |
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 #51101C | 14.57:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #51101C | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #51101C text on white | 14.57:1 | AAA | Lc 100.6 | Preferred for body text |
| #51101C text on black | 1.44:1 | 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
#FFF2F2
oklch(97.1% 0.014 17.4)
-
Step 100
100
#FFE2E3
oklch(93.7% 0.032 15.4)
-
Step 200
200
#FFC9CC
oklch(88.4% 0.062 14.7)
-
Step 300
300
#FFA3AA
oklch(80.9% 0.109 14.8)
-
Step 400
400
#FC687C
oklch(70.7% 0.181 14.8)
-
Step 500
500
#F42C5A
oklch(63.1% 0.23 15.2)
-
Step 600
600
#D60047
oklch(55.7% 0.223 15.1)
-
Step 700
700
#B5003B
oklch(49.1% 0.196 15)
-
Step 800
800
#96002F
oklch(42.8% 0.171 15.2)
-
Step 900
900
#7E0126
oklch(37.7% 0.15 15.3)
-
Step 950
950 (this color)
#51101C
oklch(29.2% 0.095 15.1)
#51101C 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) | #22201C | 0.104 |
| Deuteranopia (no green cones) | #322E1A | 0.097 |
| Tritanopia (no blue cones) | #590015 | 0.023 |
| Achromatopsia (no color) | #292929 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51101C
#51101C
oklch(29.2% 0.095 15.1)
- #003334
#003334
oklch(29.1% 0.05 196.9)
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 #51101C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.040
- Mahogany #4A0100 ΔE 0.044
- Claret #680018 ΔE 0.051
- Chocolate Brown #411900 ΔE 0.059
- Deep Brown #410200 ΔE 0.060
- Dark Maroon #3C0008 ΔE 0.068
- Dark Plum #3F012C ΔE 0.070
- Reddy Brown #6E1005 ΔE 0.072
Use #51101C 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.