#B37523
Closest named color: Leather (#AC7434). oklch(61.4% 0.121 68.5), rgb(179, 117, 35).
Aa
Black text reads best on this color (5.48:1).
About this color
#B37523 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 61%, its chroma 0.121 and its hue 69°. Its hue sits on the warm side of the wheel. The nearest named color is Leather (#AC7434), ΔE 0.017 away. Black text reads best on it, at 5.48:1.
| Hue family | Browns |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.121) |
| Temperature | warm |
| Nearest name | Leather (#AC7434) |
| Black text | 5.48:1 |
| White text | 3.82:1 |
Values
| HEX | #B37523 |
| RGB | rgb(179, 117, 35) |
| HSL | hsl(34, 67%, 42%) |
| OKLCH | oklch(61.4% 0.121 68.5) |
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 #B37523 | 3.82:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #B37523 | 5.48:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #B37523 text on white | 3.82:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #B37523 text on black | 5.48:1 | AA | Lc -36.1 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F9F5F0
oklch(97.2% 0.008 73.7)
-
Step 100
100
#F2E8DE
oklch(93.6% 0.017 67.6)
-
Step 200
200
#E8D6C3
oklch(88.6% 0.032 68.9)
-
Step 300
300
#DABA98
oklch(80.8% 0.059 68.5)
-
Step 400
400
#C7965D
oklch(70.7% 0.095 69.5)
-
Step 500
500 (this color)
#B37523
oklch(61.4% 0.121 68.5)
-
Step 600
600
#A16400
oklch(55.7% 0.122 68.7)
-
Step 700
700
#885300
oklch(49.1% 0.108 68.1)
-
Step 800
800
#704400
oklch(42.8% 0.094 68.6)
-
Step 900
900
#5C3806
oklch(37.6% 0.078 68.1)
-
Step 950
950
#362107
oklch(26.9% 0.05 68.3)
#B37523 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) | #8A7A15 | 0.073 |
| Deuteranopia (no green cones) | #988825 | 0.064 |
| Tritanopia (no blue cones) | #C46665 | 0.096 |
| Achromatopsia (no color) | #828282 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B37523
#B37523
oklch(61.4% 0.121 68.5)
- #4389C9
#4389C9
oklch(61.4% 0.12 248.6)
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 #B37523, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leather #AC7434 ΔE 0.017
- Caramel #AF6F09 ΔE 0.019
- Golden Brown #B27A01 ΔE 0.021
- Tiger's Eye #BC6C25 ΔE 0.027
- Clay Brown #B2713D ΔE 0.027
- Brown Orange #B96902 ΔE 0.028
- Bronze #A87900 ΔE 0.029
- Mustard Brown #AC7E04 ΔE 0.032
Use #B37523 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.