#B55724
Closest named color: Burnt Siena (#B75203). oklch(56.5% 0.137 45.9), rgb(181, 87, 36).
Aa
White text reads best on this color (4.82:1).
About this color
#B55724 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 56%, its chroma 0.137 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.016 away. White text reads best on it, at 4.82:1.
| Hue family | Browns |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.137) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.35:1 |
| White text | 4.82:1 |
Values
| HEX | #B55724 |
| RGB | rgb(181, 87, 36) |
| HSL | hsl(21, 67%, 43%) |
| OKLCH | oklch(56.5% 0.137 45.9) |
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 #B55724 | 4.82:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #B55724 | 4.35:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #B55724 text on white | 4.82:1 | AA | Lc 72.9 | Content text, not long reading |
| #B55724 text on black | 4.35:1 | AA large text | Lc -28.8 | 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
#EED3C7
oklch(88.6% 0.034 45.5)
-
Step 300
300
#E3B5A0
oklch(80.9% 0.061 45.8)
-
Step 400
400
#D48D6B
oklch(70.7% 0.099 46.3)
-
Step 500
500
#C76E43
oklch(63.1% 0.127 45.4)
-
Step 600
600 (this color)
#B55724
oklch(56.5% 0.137 45.9)
-
Step 700
700
#994413
oklch(49.1% 0.128 45.7)
-
Step 800
800
#7C3913
oklch(42.7% 0.105 46.4)
-
Step 900
900
#643218
oklch(37.7% 0.081 46.4)
-
Step 950
950
#3B1D0F
oklch(26.9% 0.053 44.9)
#B55724 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) | #72651D | 0.125 |
| Deuteranopia (no green cones) | #887A22 | 0.114 |
| Tritanopia (no blue cones) | #C7424D | 0.076 |
| Achromatopsia (no color) | #727272 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B55724
#B55724
oklch(56.5% 0.137 45.9)
- #0082A6
#0082A6
oklch(56.5% 0.108 225.9)
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 #B55724, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.016
- Burnt Orange #C04E01 ΔE 0.025
- Copper #B66325 ΔE 0.028
- Cinnamon #AC4F06 ΔE 0.029
- Rust Orange #C45508 ΔE 0.029
- Brick Orange #C14A09 ΔE 0.030
- Orangey Brown #B16002 ΔE 0.031
- Raw Umber #A75E09 ΔE 0.036
Use #B55724 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.