#51402C
Closest named color: Charcoal Grey (#3C4142). oklch(38.4% 0.039 70.8), rgb(81, 64, 44).
Aa
White text reads best on this color (9.90:1).
About this color
#51402C is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.039 and its hue 71°. 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 9.90:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.11:1 |
| White text | 9.90:1 |
Values
| HEX | #51402C |
| RGB | rgb(81, 64, 44) |
| HSL | hsl(32, 30%, 25%) |
| OKLCH | oklch(38.4% 0.039 70.8) |
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 #51402C | 9.90:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #51402C | 2.11:1 | Fails | Lc 11.0 | Not readable |
| #51402C text on white | 9.90:1 | AAA | Lc 93.0 | Preferred for body text |
| #51402C text on black | 2.11:1 | Fails | Lc -9.5 | 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
#F7F5F3
oklch(97.1% 0.003 67.8)
-
Step 100
100
#EEE9E4
oklch(93.7% 0.009 67.7)
-
Step 200
200
#E0D8CE
oklch(88.6% 0.016 73.7)
-
Step 300
300
#CDBEAC
oklch(80.9% 0.03 72.4)
-
Step 400
400
#B49C81
oklch(70.7% 0.047 70.2)
-
Step 500
500
#A18461
oklch(63.2% 0.061 71.6)
-
Step 600
600
#8C6D48
oklch(55.6% 0.065 70.8)
-
Step 700
700
#775B39
oklch(49.2% 0.061 71)
-
Step 800
800
#614A2F
oklch(42.7% 0.051 70.2)
-
Step 900
900 (this color)
#51402C
oklch(38.4% 0.039 70.8)
-
Step 950
950
#2E2419
oklch(26.8% 0.024 69.2)
#51402C 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) | #46412B | 0.020 |
| Deuteranopia (no green cones) | #4A452C | 0.019 |
| Tritanopia (no blue cones) | #573C3B | 0.033 |
| Achromatopsia (no color) | #434343 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51402C
#51402C
oklch(38.4% 0.039 70.8)
- #344558
#344558
oklch(38.4% 0.039 251.6)
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 #51402C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.047
- Mud Brown #60460F ΔE 0.048
- Purple Brown #673A3F ΔE 0.058
- Onyx #343A40 ΔE 0.066
- Green Brown #544E03 ΔE 0.067
- Dark Olive #373E02 ΔE 0.070
- Dark Slate Gray #2F4F4F ΔE 0.071
- Charcoal #264653 ΔE 0.082
Use #51402C 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.