#512D2E
Closest named color: Onyx (#343A40). oklch(34.3% 0.053 18.4), rgb(81, 45, 46).
Aa
White text reads best on this color (11.90:1).
About this color
#512D2E is a dark, muted red. In OKLCH its lightness is 34%, its chroma 0.053 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.063 away. White text reads best on it, at 11.90:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Onyx (#343A40) |
| Black text | 1.76:1 |
| White text | 11.90:1 |
Values
| HEX | #512D2E |
| RGB | rgb(81, 45, 46) |
| HSL | hsl(358, 29%, 25%) |
| OKLCH | oklch(34.3% 0.053 18.4) |
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 #512D2E | 11.90:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #512D2E | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #512D2E text on white | 11.90:1 | AAA | Lc 97.1 | Preferred for body text |
| #512D2E 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
#F2E7E7
oklch(93.7% 0.012 17.4)
-
Step 200
200
#E8D4D3
oklch(88.6% 0.022 21)
-
Step 300
300
#D9B7B7
oklch(80.9% 0.039 18)
-
Step 400
400
#C59191
oklch(70.7% 0.063 18.8)
-
Step 500
500
#B67576
oklch(63.1% 0.082 18.6)
-
Step 600
600
#A15D5F
oklch(55.6% 0.089 18.5)
-
Step 700
700
#894C4E
oklch(49% 0.083 18.5)
-
Step 800
800
#703F40
oklch(42.7% 0.069 19)
-
Step 900
900 (this color)
#512D2E
oklch(34.3% 0.053 18.4)
-
Step 950
950
#352020
oklch(27% 0.033 19.4)
#512D2E 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) | #34332E | 0.057 |
| Deuteranopia (no green cones) | #3D3A2D | 0.053 |
| Tritanopia (no blue cones) | #57292E | 0.015 |
| Achromatopsia (no color) | #373737 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #512D2E
#512D2E
oklch(34.3% 0.053 18.4)
- #0B4143
#0B4143
oklch(34.3% 0.053 198.7)
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 #512D2E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.063
- Purple Brown #673A3F ΔE 0.063
- Charcoal Grey #3C4142 ΔE 0.066
- Gunmetal #293241 ΔE 0.077
- Reddy Brown #6E1005 ΔE 0.078
- Burgundy #610023 ΔE 0.079
- Space Cadet #2B2D42 ΔE 0.080
- Claret #680018 ΔE 0.080
Use #512D2E 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.