#B18331
Closest named color: Dark Tan (#AF884A). oklch(64% 0.112 78.5), rgb(177, 131, 49).
Aa
Black text reads best on this color (6.16:1).
About this color
#B18331 is a medium-light, moderately saturated orange. In OKLCH its lightness is 64%, its chroma 0.112 and its hue 78°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Tan (#AF884A), ΔE 0.022 away. Black text reads best on it, at 6.16:1.
| Hue family | Oranges |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.112) |
| Temperature | warm |
| Nearest name | Dark Tan (#AF884A) |
| Black text | 6.16:1 |
| White text | 3.40:1 |
Values
| HEX | #B18331 |
| RGB | rgb(177, 131, 49) |
| HSL | hsl(38, 57%, 44%) |
| OKLCH | oklch(64% 0.112 78.5) |
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 #B18331 | 3.40:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #B18331 | 6.16:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #B18331 text on white | 3.40:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #B18331 text on black | 6.16:1 | AA | Lc -40.3 | 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
#E4D7C3
oklch(88.4% 0.03 78.8)
-
Step 300
300
#D4BD99
oklch(80.9% 0.055 78.9)
-
Step 400
400
#BF9A60
oklch(70.7% 0.088 77.9)
-
Step 500
500 (this color)
#B18331
oklch(64% 0.112 78.5)
-
Step 600
600
#986900
oklch(55.6% 0.116 77.9)
-
Step 700
700
#805800
oklch(49.1% 0.102 78.1)
-
Step 800
800
#694800
oklch(42.7% 0.089 78.7)
-
Step 900
900
#563C09
oklch(37.6% 0.073 78.7)
-
Step 950
950
#332308
oklch(27% 0.047 77.3)
#B18331 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) | #958426 | 0.049 |
| Deuteranopia (no green cones) | #A09034 | 0.042 |
| Tritanopia (no blue cones) | #C07672 | 0.097 |
| Achromatopsia (no color) | #8B8B8B | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B18331
#B18331
oklch(64% 0.112 78.5)
- #618DD0
#618DD0
oklch(64% 0.112 258.6)
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 #B18331, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Tan #AF884A ΔE 0.022
- Dark Goldenrod #B8860B ΔE 0.024
- Mustard Brown #AC7E04 ΔE 0.025
- Golden Brown #B27A01 ΔE 0.026
- Coffee #A6814C ΔE 0.032
- Light Brown #AD8150 ΔE 0.033
- Yellowy Brown #AE8B0C ΔE 0.033
- Tan Brown #AB7E4C ΔE 0.034
Use #B18331 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.