#B18A39
Closest named color: Dark Tan (#AF884A). oklch(65.5% 0.109 82.9), rgb(177, 138, 57).
Aa
Black text reads best on this color (6.56:1).
About this color
#B18A39 is a medium-light, moderately saturated orange. In OKLCH its lightness is 66%, its chroma 0.109 and its hue 83°. 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 6.56:1.
| Hue family | Oranges |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.109) |
| Temperature | warm |
| Nearest name | Dark Tan (#AF884A) |
| Black text | 6.56:1 |
| White text | 3.19:1 |
Values
| HEX | #B18A39 |
| RGB | rgb(177, 138, 57) |
| HSL | hsl(40, 51%, 46%) |
| OKLCH | oklch(65.5% 0.109 82.9) |
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 #B18A39 | 3.19:1 | AA large text | Lc -64.5 | Content text, not long reading |
| Black text on #B18A39 | 6.56:1 | AA | Lc 45.0 | Large or bold text, headings |
| #B18A39 text on white | 3.19:1 | AA large text | Lc 59.1 | Large or bold text, headings |
| #B18A39 text on black | 6.56:1 | AA | Lc -42.7 | 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
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#EFE9DF
oklch(93.6% 0.015 80.7)
-
Step 200
200
#E3D8C4
oklch(88.6% 0.029 82.6)
-
Step 300
300
#D2BE9A
oklch(80.9% 0.053 82.2)
-
Step 400
400
#BB9C61
oklch(70.8% 0.085 82.7)
-
Step 500
500 (this color)
#B18A39
oklch(65.5% 0.109 82.9)
-
Step 600
600
#946C00
oklch(55.7% 0.115 82.9)
-
Step 700
700
#7C5A00
oklch(49% 0.101 82.9)
-
Step 800
800
#664900
oklch(42.6% 0.088 82.4)
-
Step 900
900
#543D0B
oklch(37.6% 0.071 81.9)
-
Step 950
950
#312409
oklch(26.9% 0.045 82.8)
#B18A39 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) | #9B8A30 | 0.038 |
| Deuteranopia (no green cones) | #A4943C | 0.032 |
| Tritanopia (no blue cones) | #C07E79 | 0.097 |
| Achromatopsia (no color) | #909090 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B18A39
#B18A39
oklch(65.5% 0.109 82.9)
- #6D90D3
#6D90D3
oklch(65.5% 0.108 262.7)
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 #B18A39, 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 0.024
- Yellowy Brown #AE8B0C ΔE 0.027
- Dark Sand #A88F59 ΔE 0.031
- Dark Mustard #A88905 ΔE 0.033
- Mustard Brown #AC7E04 ΔE 0.038
- Ochre #BF9005 ΔE 0.039
- Light Brown #AD8150 ΔE 0.039
Use #B18A39 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.