#51523C
Closest named color: Mud Brown (#60460F). oklch(43.1% 0.034 109.9), rgb(81, 82, 60).
Aa
White text reads best on this color (8.00:1).
About this color
#51523C is a dark, muted brown. In OKLCH its lightness is 43%, its chroma 0.034 and its hue 110°. 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 8.00:1.
| Hue family | Browns |
| Lightness | dark (43%) |
| Chroma | muted (0.034) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.62:1 |
| White text | 8.00:1 |
Values
| HEX | #51523C |
| RGB | rgb(81, 82, 60) |
| HSL | hsl(63, 15%, 28%) |
| OKLCH | oklch(43.1% 0.034 109.9) |
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 #51523C | 8.00:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #51523C | 2.62:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #51523C text on white | 8.00:1 | AAA | Lc 87.8 | Fine for body text |
| #51523C text on black | 2.62:1 | Fails | Lc -14.4 | 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 800.
-
Step 50
50
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#EAEAE6
oklch(93.6% 0.005 106.5)
-
Step 200
200
#D9DAD2
oklch(88.5% 0.011 112.4)
-
Step 300
300
#C1C2B3
oklch(80.9% 0.021 109.9)
-
Step 400
400
#A1A38C
oklch(70.7% 0.033 111.3)
-
Step 500
500
#8B8C6F
oklch(63.1% 0.042 109.2)
-
Step 600
600
#757657
oklch(55.6% 0.045 109.3)
-
Step 700
700
#626347
oklch(49.1% 0.042 109.6)
-
Step 800
800 (this color)
#51523C
oklch(43.1% 0.034 109.9)
-
Step 900
900
#424333
oklch(37.7% 0.026 110.5)
-
Step 950
950
#27271E
oklch(27% 0.016 107.4)
#51523C 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) | #56503B | 0.009 |
| Deuteranopia (no green cones) | #56513D | 0.009 |
| Tritanopia (no blue cones) | #544F4C | 0.031 |
| Achromatopsia (no color) | #505050 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51523C
#51523C
oklch(43.1% 0.034 109.9)
- #4F4D62
#4F4D62
oklch(43% 0.034 289.2)
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 #51523C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.053
- Green Brown #544E03 ΔE 0.054
- Dark Slate Gray #2F4F4F ΔE 0.057
- Olive Brown #645403 ΔE 0.061
- Pine #2B5D34 ΔE 0.063
- Army Green #4B5D16 ΔE 0.066
- Dark Green Blue #1F6357 ΔE 0.070
- Charcoal Grey #3C4142 ΔE 0.070
Use #51523C 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.