#51380E
Closest named color: Mud Brown (#60460F). oklch(36.1% 0.066 76.2), rgb(81, 56, 14).
Aa
White text reads best on this color (10.92:1).
About this color
#51380E is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.066 and its hue 76°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.053 away. White text reads best on it, at 10.92:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.066) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.92:1 |
| White text | 10.92:1 |
Values
| HEX | #51380E |
| RGB | rgb(81, 56, 14) |
| HSL | hsl(38, 71%, 19%) |
| OKLCH | oklch(36.1% 0.066 76.2) |
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 #51380E | 10.92:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #51380E | 1.92:1 | Fails | Lc 8.8 | Not readable |
| #51380E text on white | 10.92:1 | AAA | Lc 95.1 | Preferred for body text |
| #51380E text on black | 1.92:1 | Fails | Lc -7.5 | 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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#EFE9E0
oklch(93.6% 0.014 78.3)
-
Step 200
200
#E4D7C6
oklch(88.5% 0.027 74.7)
-
Step 300
300
#D3BD9D
oklch(80.9% 0.05 77.2)
-
Step 400
400
#BD9A67
oklch(70.6% 0.08 76.3)
-
Step 500
500
#AC803C
oklch(63% 0.101 75.9)
-
Step 600
600
#986914
oklch(55.6% 0.11 75.9)
-
Step 700
700
#815701
oklch(49% 0.102 76.3)
-
Step 800
800
#69480A
oklch(42.8% 0.085 76.8)
-
Step 900
900 (this color)
#51380E
oklch(36.1% 0.066 76.2)
-
Step 950
950
#32230D
oklch(26.9% 0.042 74.9)
#51380E 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) | #413908 | 0.032 |
| Deuteranopia (no green cones) | #473F10 | 0.027 |
| Tritanopia (no blue cones) | #593130 | 0.057 |
| Achromatopsia (no color) | #3D3D3D | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51380E
#51380E
oklch(36.1% 0.066 76.2)
- #253E60
#253E60
oklch(36.1% 0.067 256.4)
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 #51380E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.053
- Dark Olive #373E02 ΔE 0.053
- Green Brown #544E03 ΔE 0.070
- Charcoal Grey #3C4142 ΔE 0.072
- Pakistan Green #283618 ΔE 0.074
- Chestnut #742802 ΔE 0.076
- Onyx #343A40 ΔE 0.081
- Purple Brown #673A3F ΔE 0.081
Use #51380E 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.