#B37330
Closest named color: Leather (#AC7434). oklch(61.1% 0.114 63.6), rgb(179, 115, 48).
Aa
Black text reads best on this color (5.41:1).
About this color
#B37330 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 61%, its chroma 0.114 and its hue 64°. Its hue sits on the warm side of the wheel. The nearest named color is Leather (#AC7434), ΔE 0.012 away. Black text reads best on it, at 5.41:1.
| Hue family | Browns |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Leather (#AC7434) |
| Black text | 5.41:1 |
| White text | 3.88:1 |
Values
| HEX | #B37330 |
| RGB | rgb(179, 115, 48) |
| HSL | hsl(31, 58%, 45%) |
| OKLCH | oklch(61.1% 0.114 63.6) |
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 #B37330 | 3.88:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #B37330 | 5.41:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #B37330 text on white | 3.88:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #B37330 text on black | 5.41:1 | AA | Lc -35.7 | 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
#F9F4F0
oklch(97% 0.008 61.5)
-
Step 100
100
#F2E8DF
oklch(93.6% 0.016 64.7)
-
Step 200
200
#E8D5C5
oklch(88.4% 0.03 62.5)
-
Step 300
300
#DBBA9C
oklch(81% 0.056 64.2)
-
Step 400
400
#C89564
oklch(70.8% 0.089 64.4)
-
Step 500
500 (this color)
#B37330
oklch(61.1% 0.114 63.6)
-
Step 600
600
#A56005
oklch(55.5% 0.125 63.2)
-
Step 700
700
#8C5000
oklch(49.1% 0.112 63.2)
-
Step 800
800
#734102
oklch(42.7% 0.096 63)
-
Step 900
900
#5D380F
oklch(37.8% 0.075 64)
-
Step 950
950
#36210B
oklch(26.9% 0.047 64.6)
#B37330 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) | #877828 | 0.077 |
| Deuteranopia (no green cones) | #968731 | 0.069 |
| Tritanopia (no blue cones) | #C36465 | 0.087 |
| Achromatopsia (no color) | #818181 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B37330
#B37330
oklch(61.1% 0.114 63.6)
- #3D8AC3
#3D8AC3
oklch(61.1% 0.115 243.8)
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 #B37330, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leather #AC7434 ΔE 0.012
- Clay Brown #B2713D ΔE 0.015
- Tiger's Eye #BC6C25 ΔE 0.021
- Caramel #AF6F09 ΔE 0.023
- Brown Orange #B96902 ΔE 0.027
- Tan Brown #AB7E4C ΔE 0.032
- Golden Brown #B27A01 ΔE 0.033
- Copper #B66325 ΔE 0.037
Use #B37330 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.