#51392D
Closest named color: Charcoal Grey (#3C4142). oklch(36.8% 0.04 47.6), rgb(81, 57, 45).
Aa
White text reads best on this color (10.64:1).
About this color
#51392D is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.040 and its hue 48°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.046 away. White text reads best on it, at 10.64:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.040) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.97:1 |
| White text | 10.64:1 |
Values
| HEX | #51392D |
| RGB | rgb(81, 57, 45) |
| HSL | hsl(20, 29%, 25%) |
| OKLCH | oklch(36.8% 0.04 47.6) |
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 #51392D | 10.64:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #51392D | 1.97:1 | Fails | Lc 9.3 | Not readable |
| #51392D text on white | 10.64:1 | AAA | Lc 94.6 | Preferred for body text |
| #51392D text on black | 1.97:1 | Fails | Lc -8.0 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E5
oklch(93.6% 0.009 44.9)
-
Step 200
200
#E3D6D0
oklch(88.5% 0.017 46.6)
-
Step 300
300
#D2BBB0
oklch(80.9% 0.031 47.2)
-
Step 400
400
#BA9887
oklch(70.6% 0.048 48)
-
Step 500
500
#A97F6A
oklch(63.2% 0.061 47.7)
-
Step 600
600
#946851
oklch(55.7% 0.066 48.5)
-
Step 700
700
#7E5642
oklch(49.1% 0.062 47.4)
-
Step 800
800
#664636
oklch(42.6% 0.051 47.5)
-
Step 900
900 (this color)
#51392D
oklch(36.8% 0.04 47.6)
-
Step 950
950
#31231C
oklch(27.1% 0.025 47.8)
#51392D 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) | #3F3B2C | 0.034 |
| Deuteranopia (no green cones) | #45402D | 0.030 |
| Tritanopia (no blue cones) | #573536 | 0.025 |
| Achromatopsia (no color) | #3E3E3E | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51392D
#51392D
oklch(36.8% 0.04 47.6)
- #284450
#284450
oklch(37% 0.04 227.1)
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 #51392D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.046
- Purple Brown #673A3F ΔE 0.053
- Onyx #343A40 ΔE 0.057
- Mud Brown #60460F ΔE 0.066
- Dark Olive #373E02 ΔE 0.077
- Chestnut #742802 ΔE 0.078
- Dark Slate Gray #2F4F4F ΔE 0.082
- Pakistan Green #283618 ΔE 0.084
Use #51392D 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.