#523A21
Closest named color: Mud Brown (#60460F). oklch(36.9% 0.051 66.2), rgb(82, 58, 33).
Aa
White text reads best on this color (10.57:1).
About this color
#523A21 is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.051 and its hue 66°. 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 10.57:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.051) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.98:1 |
| White text | 10.57:1 |
Values
| HEX | #523A21 |
| RGB | rgb(82, 58, 33) |
| HSL | hsl(31, 43%, 23%) |
| OKLCH | oklch(36.9% 0.051 66.2) |
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 #523A21 | 10.57:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #523A21 | 1.98:1 | Fails | Lc 9.5 | Not readable |
| #523A21 text on white | 10.57:1 | AAA | Lc 94.4 | Preferred for body text |
| #523A21 text on black | 1.98:1 | Fails | Lc -8.1 | 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
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#EFE9E2
oklch(93.7% 0.011 71.9)
-
Step 200
200
#E3D7CB
oklch(88.6% 0.021 67.6)
-
Step 300
300
#D2BCA7
oklch(80.8% 0.038 65.9)
-
Step 400
400
#BB9978
oklch(70.6% 0.061 65.7)
-
Step 500
500
#AA8055
oklch(63.1% 0.078 66.3)
-
Step 600
600
#956939
oklch(55.6% 0.086 66.8)
-
Step 700
700
#7F572C
oklch(49.1% 0.079 66.1)
-
Step 800
800
#674725
oklch(42.6% 0.066 66.1)
-
Step 900
900 (this color)
#523A21
oklch(36.9% 0.051 66.2)
-
Step 950
950
#312315
oklch(26.9% 0.032 65.8)
#523A21 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) | #423B1F | 0.031 |
| Deuteranopia (no green cones) | #484121 | 0.027 |
| Tritanopia (no blue cones) | #593534 | 0.039 |
| Achromatopsia (no color) | #3F3F3F | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #523A21
#523A21
oklch(36.9% 0.051 66.2)
- #284259
#284259
oklch(36.9% 0.051 246.4)
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 #523A21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.053
- Charcoal Grey #3C4142 ΔE 0.057
- Purple Brown #673A3F ΔE 0.064
- Dark Olive #373E02 ΔE 0.065
- Onyx #343A40 ΔE 0.069
- Green Brown #544E03 ΔE 0.073
- Chestnut #742802 ΔE 0.074
- Pakistan Green #283618 ΔE 0.079
Use #523A21 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.