#51400A
Closest named color: Mud Brown (#60460F). oklch(37.9% 0.072 90), rgb(81, 64, 10).
Aa
White text reads best on this color (10.05:1).
About this color
#51400A is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.072 and its hue 90°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.035 away. White text reads best on it, at 10.05:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #51400A |
| RGB | rgb(81, 64, 10) |
| HSL | hsl(46, 78%, 18%) |
| OKLCH | oklch(37.9% 0.072 90) |
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 #51400A | 10.05:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #51400A | 2.08:1 | Fails | Lc 10.7 | Not readable |
| #51400A text on white | 10.05:1 | AAA | Lc 93.2 | Preferred for body text |
| #51400A text on black | 2.08:1 | Fails | Lc -9.3 | 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
#EEEADE
oklch(93.7% 0.017 91.6)
-
Step 200
200
#E1D9C3
oklch(88.6% 0.031 90.3)
-
Step 300
300
#CEC09A
oklch(81% 0.053 90.2)
-
Step 400
400
#B59E60
oklch(70.6% 0.086 89.8)
-
Step 500
500
#A3862E
oklch(63.1% 0.11 90.3)
-
Step 600
600
#8D6F00
oklch(55.5% 0.113 89.9)
-
Step 700
700
#775D00
oklch(49.1% 0.1 89.6)
-
Step 800
800
#624C00
oklch(42.8% 0.087 89.5)
-
Step 900
900 (this color)
#51400A
oklch(37.9% 0.072 90)
-
Step 950
950
#2F2509
oklch(26.9% 0.045 89.2)
#51400A 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) | #493F01 | 0.017 |
| Deuteranopia (no green cones) | #4D440D | 0.013 |
| Tritanopia (no blue cones) | #593A36 | 0.065 |
| Achromatopsia (no color) | #424242 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51400A
#51400A
oklch(37.9% 0.072 90)
- #334068
#334068
oklch(38% 0.071 269.2)
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 #51400A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.035
- Green Brown #544E03 ΔE 0.045
- Dark Olive #373E02 ΔE 0.049
- Navy Green #35530A ΔE 0.071
- Olive Brown #645403 ΔE 0.072
- Charcoal Grey #3C4142 ΔE 0.076
- Pakistan Green #283618 ΔE 0.082
- Chestnut #742802 ΔE 0.087
Use #51400A 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.