#B18005
Closest named color: Mustard Brown (#AC7E04). oklch(63.2% 0.129 81.3), rgb(177, 128, 5).
Aa
Black text reads best on this color (5.95:1).
About this color
#B18005 is a medium-light, moderately saturated orange. In OKLCH its lightness is 63%, its chroma 0.129 and its hue 81°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Brown (#AC7E04), ΔE 0.010 away. Black text reads best on it, at 5.95:1.
| Hue family | Oranges |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.129) |
| Temperature | warm |
| Nearest name | Mustard Brown (#AC7E04) |
| Black text | 5.95:1 |
| White text | 3.52:1 |
Values
| HEX | #B18005 |
| RGB | rgb(177, 128, 5) |
| HSL | hsl(43, 95%, 36%) |
| OKLCH | oklch(63.2% 0.129 81.3) |
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 #B18005 | 3.52:1 | AA large text | Lc -68.0 | Content text, not long reading |
| Black text on #B18005 | 5.95:1 | AA | Lc 41.5 | Non-text elements, placeholder text |
| #B18005 text on white | 3.52:1 | AA large text | Lc 62.5 | Content text, not long reading |
| #B18005 text on black | 5.95:1 | AA | Lc -39.1 | 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
#F8F5EF
oklch(97.1% 0.009 84.6)
-
Step 100
100
#F0E9DD
oklch(93.6% 0.018 81.3)
-
Step 200
200
#E5D7C0
oklch(88.4% 0.034 80.3)
-
Step 300
300
#D6BD92
oklch(80.9% 0.064 81)
-
Step 400
400
#C19A52
oklch(70.7% 0.102 81.2)
-
Step 500
500 (this color)
#B18005
oklch(63.2% 0.129 81.3)
-
Step 600
600
#956B00
oklch(55.6% 0.115 81.4)
-
Step 700
700
#7E5900
oklch(49% 0.101 80.5)
-
Step 800
800
#674900
oklch(42.7% 0.088 81.6)
-
Step 900
900
#563C00
oklch(37.6% 0.078 81.1)
-
Step 950
950
#342302
oklch(27% 0.054 80)
#B18005 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) | #938100 | 0.051 |
| Deuteranopia (no green cones) | #9F8D11 | 0.043 |
| Tritanopia (no blue cones) | #C1716D | 0.115 |
| Achromatopsia (no color) | #888888 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B18005
#B18005
oklch(63.2% 0.129 81.3)
- #5C88D7
#5C88D7
oklch(63.1% 0.129 261.4)
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 #B18005, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Brown #AC7E04 ΔE 0.010
- Golden Brown #B27A01 ΔE 0.015
- Dark Goldenrod #B8860B ΔE 0.020
- Bronze #A87900 ΔE 0.025
- Dark Mustard #A88905 ΔE 0.027
- Yellowy Brown #AE8B0C ΔE 0.028
- Dark Tan #AF884A ΔE 0.042
- Caramel #AF6F09 ΔE 0.044
Use #B18005 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.