#B7571D
Closest named color: Burnt Siena (#B75203). oklch(56.7% 0.141 47.2), rgb(183, 87, 29).
Aa
White text reads best on this color (4.77:1).
About this color
#B7571D is a medium-dark, vivid orange. In OKLCH its lightness is 57%, its chroma 0.141 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.013 away. White text reads best on it, at 4.77:1.
| Hue family | Oranges |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.141) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.39:1 |
| White text | 4.77:1 |
Values
| HEX | #B7571D |
| RGB | rgb(183, 87, 29) |
| HSL | hsl(23, 73%, 42%) |
| OKLCH | oklch(56.7% 0.141 47.2) |
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 #B7571D | 4.77:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #B7571D | 4.39:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #B7571D text on white | 4.77:1 | AA | Lc 72.6 | Content text, not long reading |
| #B7571D text on black | 4.39:1 | AA large text | Lc -29.1 | 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
#F5E6E0
oklch(93.5% 0.018 43.2)
-
Step 200
200
#EED3C6
oklch(88.6% 0.035 47.4)
-
Step 300
300
#E4B59E
oklch(80.9% 0.063 47.4)
-
Step 400
400
#D58C68
oklch(70.6% 0.102 46.8)
-
Step 500
500
#C86E3E
oklch(63.1% 0.13 47.2)
-
Step 600
600 (this color)
#B7571D
oklch(56.7% 0.141 47.2)
-
Step 700
700
#9A4308
oklch(49% 0.132 46.9)
-
Step 800
800
#7D380D
oklch(42.7% 0.109 47.2)
-
Step 900
900
#653114
oklch(37.7% 0.085 47.2)
-
Step 950
950
#3B1D0D
oklch(26.9% 0.054 47.4)
#B7571D 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) | #736513 | 0.127 |
| Deuteranopia (no green cones) | #8A7B1A | 0.116 |
| Tritanopia (no blue cones) | #C9414C | 0.080 |
| Achromatopsia (no color) | #727272 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B7571D
#B7571D
oklch(56.7% 0.141 47.2)
- #0082A8
#0082A8
oklch(56.6% 0.11 227.3)
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 #B7571D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.013
- Burnt Orange #C04E01 ΔE 0.022
- Rust Orange #C45508 ΔE 0.024
- Copper #B66325 ΔE 0.026
- Brick Orange #C14A09 ΔE 0.028
- Orangey Brown #B16002 ΔE 0.028
- Cinnamon #AC4F06 ΔE 0.031
- Raw Umber #A75E09 ΔE 0.036
Use #B7571D 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.