#B78637
Closest named color: Dark Tan (#AF884A). oklch(65.3% 0.112 76.2), rgb(183, 134, 55).
Aa
Black text reads best on this color (6.47:1).
About this color
#B78637 is a medium-light, moderately saturated orange. In OKLCH its lightness is 65%, its chroma 0.112 and its hue 76°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Tan (#AF884A), ΔE 0.019 away. Black text reads best on it, at 6.47:1.
| Hue family | Oranges |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.112) |
| Temperature | warm |
| Nearest name | Dark Tan (#AF884A) |
| Black text | 6.47:1 |
| White text | 3.24:1 |
Values
| HEX | #B78637 |
| RGB | rgb(183, 134, 55) |
| HSL | hsl(37, 54%, 47%) |
| OKLCH | oklch(65.3% 0.112 76.2) |
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 #B78637 | 3.24:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #B78637 | 6.47:1 | AA | Lc 44.5 | Non-text elements, placeholder text |
| #B78637 text on white | 3.24:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #B78637 text on black | 6.47:1 | AA | Lc -42.2 | 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
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#F0E9DE
oklch(93.6% 0.017 79.3)
-
Step 200
200
#E5D7C3
oklch(88.5% 0.031 76.9)
-
Step 300
300
#D5BC9A
oklch(80.8% 0.054 75.4)
-
Step 400
400
#C09960
oklch(70.6% 0.088 76)
-
Step 500
500 (this color)
#B78637
oklch(65.3% 0.112 76.2)
-
Step 600
600
#9A6800
oklch(55.6% 0.117 75.8)
-
Step 700
700
#815700
oklch(49% 0.103 76.4)
-
Step 800
800
#6A4700
oklch(42.6% 0.089 76.7)
-
Step 900
900
#573B0A
oklch(37.5% 0.073 75.9)
-
Step 950
950
#332309
oklch(27% 0.046 76.5)
#B78637 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) | #98882E | 0.053 |
| Deuteranopia (no green cones) | #A4943A | 0.046 |
| Tritanopia (no blue cones) | #C77975 | 0.095 |
| Achromatopsia (no color) | #8F8F8F | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B78637
#B78637
oklch(65.3% 0.112 76.2)
- #6192D4
#6192D4
oklch(65.3% 0.113 256.2)
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 #B78637, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Tan #AF884A ΔE 0.019
- Dark Goldenrod #B8860B ΔE 0.023
- Light Brown #AD8150 ΔE 0.035
- Yellowy Brown #AE8B0C ΔE 0.035
- Golden Brown #B27A01 ΔE 0.037
- Mustard Brown #AC7E04 ΔE 0.037
- Dark Sand #A88F59 ΔE 0.038
- Coffee #A6814C ΔE 0.039
Use #B78637 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.