#51382E
Closest named color: Charcoal Grey (#3C4142). oklch(36.6% 0.04 42.7), rgb(81, 56, 46).
Aa
White text reads best on this color (10.74:1).
About this color
#51382E is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.040 and its hue 43°. 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 10.74:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.040) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.95:1 |
| White text | 10.74:1 |
Values
| HEX | #51382E |
| RGB | rgb(81, 56, 46) |
| HSL | hsl(17, 28%, 25%) |
| OKLCH | oklch(36.6% 0.04 42.7) |
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 #51382E | 10.74:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #51382E | 1.95:1 | Fails | Lc 9.1 | Not readable |
| #51382E text on white | 10.74:1 | AAA | Lc 94.8 | Preferred for body text |
| #51382E text on black | 1.95:1 | Fails | Lc -7.8 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E5
oklch(93.6% 0.009 44.9)
-
Step 200
200
#E3D6D1
oklch(88.5% 0.016 42.4)
-
Step 300
300
#D2BBB2
oklch(80.9% 0.029 42.6)
-
Step 400
400
#BB9889
oklch(70.8% 0.047 44.4)
-
Step 500
500
#AA7E6C
oklch(63.2% 0.061 43.2)
-
Step 600
600
#956754
oklch(55.7% 0.066 43.3)
-
Step 700
700
#7F5544
oklch(49.1% 0.062 42.9)
-
Step 800
800
#674638
oklch(42.7% 0.051 43.9)
-
Step 900
900 (this color)
#51382E
oklch(36.6% 0.04 42.7)
-
Step 950
950
#31231D
oklch(27.1% 0.024 44.3)
#51382E 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) | #3E3B2D | 0.036 |
| Deuteranopia (no green cones) | #44402E | 0.033 |
| Tritanopia (no blue cones) | #573435 | 0.022 |
| Achromatopsia (no color) | #3E3E3E | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51382E
#51382E
oklch(36.6% 0.04 42.7)
- #26444E
#26444E
oklch(36.8% 0.04 221.4)
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 #51382E, 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 0.056
- Mud Brown #60460F ΔE 0.070
- Chestnut #742802 ΔE 0.078
- Dark Olive #373E02 ΔE 0.080
- Gunmetal #293241 ΔE 0.083
- Dark Slate Gray #2F4F4F ΔE 0.084
Use #51382E 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.