#51420B
Closest named color: Mud Brown (#60460F). oklch(38.4% 0.072 92.6), rgb(81, 66, 11).
Aa
White text reads best on this color (9.84:1).
About this color
#51420B is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.072 and its hue 93°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.032 away. White text reads best on it, at 9.84:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.13:1 |
| White text | 9.84:1 |
Values
| HEX | #51420B |
| RGB | rgb(81, 66, 11) |
| HSL | hsl(47, 76%, 18%) |
| OKLCH | oklch(38.4% 0.072 92.6) |
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 #51420B | 9.84:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #51420B | 2.13:1 | Fails | Lc 11.2 | Not readable |
| #51420B text on white | 9.84:1 | AAA | Lc 92.7 | Preferred for body text |
| #51420B text on black | 2.13:1 | Fails | Lc -9.7 | 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
#F7F5F0
oklch(97% 0.007 88.6)
-
Step 100
100
#EDEADE
oklch(93.6% 0.016 95.2)
-
Step 200
200
#E0D9C3
oklch(88.5% 0.03 92.3)
-
Step 300
300
#CDC099
oklch(80.9% 0.054 91.8)
-
Step 400
400
#B39F5F
oklch(70.6% 0.087 92.6)
-
Step 500
500
#A1872D
oklch(63.1% 0.111 92.5)
-
Step 600
600
#8B7000
oklch(55.5% 0.114 92)
-
Step 700
700
#755E00
oklch(49.1% 0.1 92.1)
-
Step 800
800
#604D00
oklch(42.7% 0.087 92.5)
-
Step 900
900 (this color)
#51420B
oklch(38.4% 0.072 92.6)
-
Step 950
950
#2E2608
oklch(27.1% 0.046 94.1)
#51420B 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) | #4A4102 | 0.015 |
| Deuteranopia (no green cones) | #4E450F | 0.010 |
| Tritanopia (no blue cones) | #583C38 | 0.066 |
| Achromatopsia (no color) | #434343 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51420B
#51420B
oklch(38.4% 0.072 92.6)
- #37406A
#37406A
oklch(38.4% 0.073 273.4)
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 #51420B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.032
- Green Brown #544E03 ΔE 0.039
- Dark Olive #373E02 ΔE 0.050
- Navy Green #35530A ΔE 0.066
- Olive Brown #645403 ΔE 0.067
- Charcoal Grey #3C4142 ΔE 0.077
- Army Green #4B5D16 ΔE 0.081
- Pakistan Green #283618 ΔE 0.085
Use #51420B 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.