#B9531B
Closest named color: Burnt Siena (#B75203). oklch(56.4% 0.147 45), rgb(185, 83, 27).
Aa
White text reads best on this color (4.86:1).
About this color
#B9531B is a medium-dark, vivid orange. In OKLCH its lightness is 56%, its chroma 0.147 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.011 away. White text reads best on it, at 4.86:1.
| Hue family | Oranges |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.31:1 |
| White text | 4.86:1 |
Values
| HEX | #B9531B |
| RGB | rgb(185, 83, 27) |
| HSL | hsl(21, 75%, 42%) |
| OKLCH | oklch(56.4% 0.147 45) |
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 #B9531B | 4.86:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #B9531B | 4.31:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #B9531B text on white | 4.86:1 | AA | Lc 73.1 | Content text, not long reading |
| #B9531B text on black | 4.31:1 | AA large text | Lc -28.6 | Dividers and decoration only |
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 600.
-
Step 50
50
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#EFD2C6
oklch(88.5% 0.037 43.8)
-
Step 300
300
#E6B49E
oklch(80.9% 0.066 44.9)
-
Step 400
400
#D88B68
oklch(70.8% 0.106 45)
-
Step 500
500
#CB6B3D
oklch(63% 0.136 44.9)
-
Step 600
600 (this color)
#B9531B
oklch(56.4% 0.147 45)
-
Step 700
700
#9D4107
oklch(49.2% 0.137 45.2)
-
Step 800
800
#7F360D
oklch(42.7% 0.113 45.1)
-
Step 900
900
#673014
oklch(37.8% 0.088 45.3)
-
Step 950
950
#3C1C0D
oklch(26.8% 0.056 44.7)
#B9531B 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) | #706311 | 0.137 |
| Deuteranopia (no green cones) | #897A17 | 0.124 |
| Tritanopia (no blue cones) | #CC3B48 | 0.078 |
| Achromatopsia (no color) | #717171 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9531B
#B9531B
oklch(56.4% 0.147 45)
- #0082A5
#0082A5
oklch(56.4% 0.107 225.2)
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 #B9531B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.011
- Burnt Orange #C04E01 ΔE 0.015
- Brick Orange #C14A09 ΔE 0.020
- Rust Orange #C45508 ΔE 0.023
- Cinnamon #AC4F06 ΔE 0.030
- Copper #B66325 ΔE 0.034
- Orangey Brown #B16002 ΔE 0.036
- Sinopia #BB3E03 ΔE 0.038
Use #B9531B 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.