#523B2B
Closest named color: Charcoal Grey (#3C4142). oklch(37.4% 0.042 55.9), rgb(82, 59, 43).
Aa
White text reads best on this color (10.39:1).
About this color
#523B2B is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.042 and its hue 56°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.048 away. White text reads best on it, at 10.39:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.042) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.01:1 |
| White text | 10.39:1 |
Values
| HEX | #523B2B |
| RGB | rgb(82, 59, 43) |
| HSL | hsl(25, 31%, 25%) |
| OKLCH | oklch(37.4% 0.042 55.9) |
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 #523B2B | 10.39:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #523B2B | 2.01:1 | Fails | Lc 9.8 | Not readable |
| #523B2B text on white | 10.39:1 | AAA | Lc 94.1 | Preferred for body text |
| #523B2B text on black | 2.01:1 | Fails | Lc -8.5 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E4
oklch(93.5% 0.009 52.1)
-
Step 200
200
#E3D6CE
oklch(88.4% 0.018 54)
-
Step 300
300
#D1BCAE
oklch(80.9% 0.031 55.9)
-
Step 400
400
#BA9983
oklch(70.7% 0.05 55.4)
-
Step 500
500
#A88064
oklch(63.2% 0.064 56.3)
-
Step 600
600
#93694B
oklch(55.7% 0.069 56.3)
-
Step 700
700
#7D573C
oklch(49.1% 0.064 56)
-
Step 800
800
#664732
oklch(42.7% 0.054 54.9)
-
Step 900
900 (this color)
#523B2B
oklch(37.4% 0.042 55.9)
-
Step 950
950
#31231A
oklch(27% 0.027 54)
#523B2B 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) | #423D2A | 0.030 |
| Deuteranopia (no green cones) | #47422B | 0.028 |
| Tritanopia (no blue cones) | #583737 | 0.028 |
| Achromatopsia (no color) | #404040 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #523B2B
#523B2B
oklch(37.4% 0.042 55.9)
- #2A4454
#2A4454
oklch(37.3% 0.042 236.5)
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 #523B2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.048
- Purple Brown #673A3F ΔE 0.054
- Mud Brown #60460F ΔE 0.058
- Onyx #343A40 ΔE 0.062
- Dark Olive #373E02 ΔE 0.074
- Chestnut #742802 ΔE 0.077
- Green Brown #544E03 ΔE 0.079
- Dark Slate Gray #2F4F4F ΔE 0.080
Use #523B2B 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.