#51171B
Closest named color: Burgundy (#610023). oklch(30.1% 0.087 20.1), rgb(81, 23, 27).
Aa
White text reads best on this color (14.11:1).
About this color
#51171B is a dark, moderately saturated red. In OKLCH its lightness is 30%, its chroma 0.087 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.046 away. White text reads best on it, at 14.11:1.
| Hue family | Reds |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.087) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.48:1 |
| White text | 14.11:1 |
Values
| HEX | #51171B |
| RGB | rgb(81, 23, 27) |
| HSL | hsl(356, 56%, 20%) |
| OKLCH | oklch(30.1% 0.087 20.1) |
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 #51171B | 14.11:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #51171B | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #51171B text on white | 14.11:1 | AAA | Lc 100.2 | Preferred for body text |
| #51171B text on black | 1.48:1 | 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
#FDE3E2
oklch(93.7% 0.029 20.3)
-
Step 200
200
#FDCBCA
oklch(88.5% 0.057 19.6)
-
Step 300
300
#FCA6A5
oklch(80.9% 0.102 20.3)
-
Step 400
400
#F67075
oklch(70.7% 0.165 20)
-
Step 500
500
#ED3F51
oklch(63.1% 0.209 20.2)
-
Step 600
600
#D70037
oklch(55.6% 0.223 20.1)
-
Step 700
700
#B6002D
oklch(49.1% 0.197 20.1)
-
Step 800
800
#970024
oklch(42.8% 0.172 20)
-
Step 900
900
#7A1221
oklch(37.7% 0.137 20.1)
-
Step 950
950 (this color)
#51171B
oklch(30.1% 0.087 20.1)
#51171B 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) | #26241B | 0.094 |
| Deuteranopia (no green cones) | #353019 | 0.087 |
| Tritanopia (no blue cones) | #590A19 | 0.023 |
| Achromatopsia (no color) | #2B2B2B | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51171B
#51171B
oklch(30.1% 0.087 20.1)
- #003538
#003538
oklch(29.9% 0.051 200.9)
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 #51171B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.046
- Mahogany #4A0100 ΔE 0.049
- Claret #680018 ΔE 0.052
- Chocolate Brown #411900 ΔE 0.053
- Deep Brown #410200 ΔE 0.065
- Reddy Brown #6E1005 ΔE 0.067
- Dark Maroon #3C0008 ΔE 0.076
- Dark Brown #341C02 ΔE 0.077
Use #51171B 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.