#51372F
Closest named color: Charcoal Grey (#3C4142). oklch(36.4% 0.04 37.8), rgb(81, 55, 47).
Aa
White text reads best on this color (10.83:1).
About this color
#51372F is a dark, muted red. In OKLCH its lightness is 36%, its chroma 0.040 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.047 away. White text reads best on it, at 10.83:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | muted (0.040) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.93:1 |
| White text | 10.83:1 |
Values
| HEX | #51372F |
| RGB | rgb(81, 55, 47) |
| HSL | hsl(14, 27%, 25%) |
| OKLCH | oklch(36.4% 0.04 37.8) |
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 #51372F | 10.83:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #51372F | 1.93:1 | Fails | Lc 8.9 | Not readable |
| #51372F text on white | 10.83:1 | AAA | Lc 95.0 | Preferred for body text |
| #51372F text on black | 1.93:1 | Fails | Lc -7.6 | 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
#F8F4F3
oklch(97% 0.005 34.3)
-
Step 100
100
#EFE8E6
oklch(93.6% 0.008 36.6)
-
Step 200
200
#E4D6D1
oklch(88.6% 0.017 40.8)
-
Step 300
300
#D3BAB3
oklch(80.8% 0.03 36.2)
-
Step 400
400
#BC978B
oklch(70.7% 0.048 38.7)
-
Step 500
500
#AB7D6F
oklch(63.2% 0.061 37.6)
-
Step 600
600
#966657
oklch(55.7% 0.067 38.1)
-
Step 700
700
#805447
oklch(49.1% 0.063 37.2)
-
Step 800
800
#68453A
oklch(42.7% 0.052 38.2)
-
Step 900
900 (this color)
#51372F
oklch(36.4% 0.04 37.8)
-
Step 950
950
#32221D
oklch(27% 0.026 38.1)
#51372F 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) | #3D3A2E | 0.038 |
| Deuteranopia (no green cones) | #433F2F | 0.034 |
| Tritanopia (no blue cones) | #573335 | 0.021 |
| Achromatopsia (no color) | #3D3D3D | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51372F
#51372F
oklch(36.4% 0.04 37.8)
- #24444C
#24444C
oklch(36.6% 0.04 215.7)
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 #51372F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.047
- Purple Brown #673A3F ΔE 0.052
- Onyx #343A40 ΔE 0.055
- Mud Brown #60460F ΔE 0.073
- Chestnut #742802 ΔE 0.079
- Gunmetal #293241 ΔE 0.081
- Dark Olive #373E02 ΔE 0.083
- Charcoal #264653 ΔE 0.084
Use #51372F 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.