#51523D
Closest named color: Mud Brown (#60460F). oklch(43.1% 0.033 110), rgb(81, 82, 61).
Aa
White text reads best on this color (8.00:1).
About this color
#51523D is a dark, muted brown. In OKLCH its lightness is 43%, its chroma 0.033 and its hue 110°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.054 away. White text reads best on it, at 8.00:1.
| Hue family | Browns |
| Lightness | dark (43%) |
| Chroma | muted (0.033) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.62:1 |
| White text | 8.00:1 |
Values
| HEX | #51523D |
| RGB | rgb(81, 82, 61) |
| HSL | hsl(63, 15%, 28%) |
| OKLCH | oklch(43.1% 0.033 110) |
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 #51523D | 8.00:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #51523D | 2.62:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #51523D text on white | 8.00:1 | AAA | Lc 87.7 | Fine for body text |
| #51523D 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
#F5F6F4
oklch(97.2% 0.003 128.5)
-
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
#C1C2B4
oklch(80.9% 0.019 110.1)
-
Step 400
400
#A1A38D
oklch(70.8% 0.031 111.4)
-
Step 500
500
#8A8C71
oklch(63.1% 0.039 110.9)
-
Step 600
600
#747659
oklch(55.6% 0.043 111)
-
Step 700
700
#626349
oklch(49.1% 0.039 109.6)
-
Step 800
800 (this color)
#51523D
oklch(43.1% 0.033 110)
-
Step 900
900
#424333
oklch(37.7% 0.026 110.5)
-
Step 950
950
#27271E
oklch(27% 0.016 107.4)
#51523D 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) | #55503C | 0.008 |
| Deuteranopia (no green cones) | #56513E | 0.009 |
| Tritanopia (no blue cones) | #544F4C | 0.029 |
| Achromatopsia (no color) | #505050 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51523D
#51523D
oklch(43.1% 0.033 110)
- #504D61
#504D61
oklch(43.1% 0.033 291.8)
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 #51523D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.054
- Green Brown #544E03 ΔE 0.056
- Dark Slate Gray #2F4F4F ΔE 0.056
- Olive Brown #645403 ΔE 0.062
- Pine #2B5D34 ΔE 0.063
- Army Green #4B5D16 ΔE 0.067
- Dark Green Blue #1F6357 ΔE 0.070
- Charcoal Grey #3C4142 ΔE 0.070
Use #51523D 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.