#512D2B
Closest named color: Onyx (#343A40). oklch(34.2% 0.054 23.6), rgb(81, 45, 43).
Aa
White text reads best on this color (11.93:1).
About this color
#512D2B is a dark, muted red. In OKLCH its lightness is 34%, its chroma 0.054 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.064 away. White text reads best on it, at 11.93:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Onyx (#343A40) |
| Black text | 1.76:1 |
| White text | 11.93:1 |
Values
| HEX | #512D2B |
| RGB | rgb(81, 45, 43) |
| HSL | hsl(3, 31%, 24%) |
| OKLCH | oklch(34.2% 0.054 23.6) |
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 #512D2B | 11.93:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #512D2B | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #512D2B text on white | 11.93:1 | AAA | Lc 97.2 | Preferred for body text |
| #512D2B text on black | 1.76:1 | 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 900.
-
Step 50
50
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F2E7E6
oklch(93.6% 0.012 23.7)
-
Step 200
200
#E8D4D2
oklch(88.6% 0.022 24.5)
-
Step 300
300
#DAB7B4
oklch(80.9% 0.041 23.8)
-
Step 400
400
#C6918D
oklch(70.7% 0.065 23.7)
-
Step 500
500
#B67671
oklch(63.2% 0.082 24.5)
-
Step 600
600
#A15D5A
oklch(55.5% 0.09 23)
-
Step 700
700
#8A4D4A
oklch(49.2% 0.083 23.5)
-
Step 800
800
#703F3D
oklch(42.7% 0.069 22.8)
-
Step 900
900 (this color)
#512D2B
oklch(34.2% 0.054 23.6)
-
Step 950
950
#35201E
oklch(27% 0.033 25.5)
#512D2B 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) | #35322B | 0.055 |
| Deuteranopia (no green cones) | #3D3A2A | 0.053 |
| Tritanopia (no blue cones) | #58282D | 0.020 |
| Achromatopsia (no color) | #373737 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #512D2B
#512D2B
oklch(34.2% 0.054 23.6)
- #0A4045
#0A4045
oklch(34.1% 0.053 204.4)
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 #512D2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.064
- Purple Brown #673A3F ΔE 0.064
- Charcoal Grey #3C4142 ΔE 0.067
- Reddy Brown #6E1005 ΔE 0.076
- Gunmetal #293241 ΔE 0.079
- Claret #680018 ΔE 0.080
- Chestnut #742802 ΔE 0.080
- Burgundy #610023 ΔE 0.080
Use #512D2B 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.