#B37B37
Closest named color: Tan Brown (#AB7E4C). oklch(62.7% 0.109 68.6), rgb(179, 123, 55).
Aa
Black text reads best on this color (5.80:1).
About this color
#B37B37 is a medium-light, moderately saturated orange. In OKLCH its lightness is 63%, its chroma 0.109 and its hue 69°. Its hue sits on the warm side of the wheel. The nearest named color is Tan Brown (#AB7E4C), ΔE 0.022 away. Black text reads best on it, at 5.80:1.
| Hue family | Oranges |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.109) |
| Temperature | warm |
| Nearest name | Tan Brown (#AB7E4C) |
| Black text | 5.80:1 |
| White text | 3.61:1 |
Values
| HEX | #B37B37 |
| RGB | rgb(179, 123, 55) |
| HSL | hsl(33, 53%, 46%) |
| OKLCH | oklch(62.7% 0.109 68.6) |
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 #B37B37 | 3.61:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #B37B37 | 5.80:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #B37B37 text on white | 3.61:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #B37B37 text on black | 5.80:1 | AA | Lc -38.1 | 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
#F1E8DF
oklch(93.6% 0.016 67.6)
-
Step 200
200
#E7D6C5
oklch(88.5% 0.03 67.4)
-
Step 300
300
#D8BB9C
oklch(80.9% 0.054 68.8)
-
Step 400
400
#C49765
oklch(70.7% 0.086 68.7)
-
Step 500
500 (this color)
#B37B37
oklch(62.7% 0.109 68.6)
-
Step 600
600
#A0640A
oklch(55.6% 0.119 68.3)
-
Step 700
700
#875300
oklch(49% 0.107 68.7)
-
Step 800
800
#6F4404
oklch(42.7% 0.091 68.5)
-
Step 900
900
#5A3A11
oklch(37.8% 0.071 68.8)
-
Step 950
950
#35220C
oklch(27% 0.045 67.8)
#B37B37 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) | #8E7F2F | 0.064 |
| Deuteranopia (no green cones) | #9B8C38 | 0.058 |
| Tritanopia (no blue cones) | #C36E6C | 0.086 |
| Achromatopsia (no color) | #868686 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B37B37
#B37B37
oklch(62.7% 0.109 68.6)
- #4F8DC7
#4F8DC7
oklch(62.7% 0.109 248.5)
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 #B37B37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tan Brown #AB7E4C ΔE 0.022
- Leather #AC7434 ΔE 0.023
- Light Brown #AD8150 ΔE 0.025
- Coffee #A6814C ΔE 0.027
- Golden Brown #B27A01 ΔE 0.028
- Clay Brown #B2713D ΔE 0.029
- Dark Tan #AF884A ΔE 0.032
- Puce #A57E52 ΔE 0.033
Use #B37B37 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.