#B18531
Closest named color: Dark Goldenrod (#B8860B). oklch(64.4% 0.113 80.2), rgb(177, 133, 49).
Aa
Black text reads best on this color (6.26:1).
About this color
#B18531 is a medium-light, moderately saturated orange. In OKLCH its lightness is 64%, its chroma 0.113 and its hue 80°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Goldenrod (#B8860B), ΔE 0.021 away. Black text reads best on it, at 6.26:1.
| Hue family | Oranges |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.113) |
| Temperature | warm |
| Nearest name | Dark Goldenrod (#B8860B) |
| Black text | 6.26:1 |
| White text | 3.34:1 |
Values
| HEX | #B18531 |
| RGB | rgb(177, 133, 49) |
| HSL | hsl(39, 57%, 44%) |
| OKLCH | oklch(64.4% 0.113 80.2) |
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 #B18531 | 3.34:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #B18531 | 6.26:1 | AA | Lc 43.3 | Non-text elements, placeholder text |
| #B18531 text on white | 3.34:1 | AA large text | Lc 60.8 | Content text, not long reading |
| #B18531 text on black | 6.26:1 | AA | Lc -40.9 | 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
#EFE9DE
oklch(93.6% 0.016 82.8)
-
Step 200
200
#E4D7C3
oklch(88.4% 0.03 78.8)
-
Step 300
300
#D4BD99
oklch(80.9% 0.055 78.9)
-
Step 400
400
#BD9B5F
oklch(70.7% 0.088 80.8)
-
Step 500
500 (this color)
#B18531
oklch(64.4% 0.113 80.2)
-
Step 600
600
#966A00
oklch(55.5% 0.115 79.9)
-
Step 700
700
#7E5900
oklch(49% 0.101 80.5)
-
Step 800
800
#684800
oklch(42.6% 0.088 79.5)
-
Step 900
900
#563C07
oklch(37.6% 0.074 79.3)
-
Step 950
950
#322408
oklch(27.1% 0.047 81.6)
#B18531 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) | #978626 | 0.045 |
| Deuteranopia (no green cones) | #A19134 | 0.039 |
| Tritanopia (no blue cones) | #C07874 | 0.099 |
| Achromatopsia (no color) | #8C8C8C | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B18531
#B18531
oklch(64.4% 0.113 80.2)
- #648DD2
#648DD2
oklch(64.3% 0.114 260.4)
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 #B18531, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Goldenrod #B8860B ΔE 0.021
- Dark Tan #AF884A ΔE 0.021
- Mustard Brown #AC7E04 ΔE 0.027
- Yellowy Brown #AE8B0C ΔE 0.029
- Golden Brown #B27A01 ΔE 0.030
- Dark Mustard #A88905 ΔE 0.032
- Coffee #A6814C ΔE 0.035
- Light Brown #AD8150 ΔE 0.035
Use #B18531 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.