#B0551F
Closest named color: Burnt Siena (#B75203). oklch(55.4% 0.135 47.3), rgb(176, 85, 31).
Aa
White text reads best on this color (5.04:1).
About this color
#B0551F is a medium-dark, moderately saturated brown. In OKLCH its lightness is 55%, its chroma 0.135 and its hue 47°. 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 5.04:1.
| Hue family | Browns |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.16:1 |
| White text | 5.04:1 |
Values
| HEX | #B0551F |
| RGB | rgb(176, 85, 31) |
| HSL | hsl(22, 70%, 41%) |
| OKLCH | oklch(55.4% 0.135 47.3) |
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 #B0551F | 5.04:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #B0551F | 4.16:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #B0551F text on white | 5.04:1 | AA | Lc 74.3 | Content text, not long reading |
| #B0551F text on black | 4.16:1 | AA large text | Lc -27.4 | 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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F4E7E0
oklch(93.6% 0.017 50.4)
-
Step 200
200
#EDD3C7
oklch(88.5% 0.033 46.4)
-
Step 300
300
#E3B59F
oklch(80.9% 0.062 46.9)
-
Step 400
400
#D38E6B
oklch(70.8% 0.097 47.6)
-
Step 500
500
#C57042
oklch(63.1% 0.124 47.8)
-
Step 600
600 (this color)
#B0551F
oklch(55.4% 0.135 47.3)
-
Step 700
700
#984512
oklch(49.1% 0.126 46.9)
-
Step 800
800
#7B3A13
oklch(42.7% 0.103 47.6)
-
Step 900
900
#643217
oklch(37.7% 0.082 47)
-
Step 950
950
#3B1E0F
oklch(27.1% 0.052 47)
#B0551F 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) | #6F6217 | 0.122 |
| Deuteranopia (no green cones) | #85771D | 0.111 |
| Tritanopia (no blue cones) | #C1414A | 0.075 |
| Achromatopsia (no color) | #6F6F6F | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B0551F
#B0551F
oklch(55.4% 0.135 47.3)
- #007EA3
#007EA3
oklch(55.3% 0.107 227.3)
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 #B0551F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.016
- Cinnamon #AC4F06 ΔE 0.018
- Burnt Orange #C04E01 ΔE 0.031
- Raw Umber #A75E09 ΔE 0.031
- Orangey Brown #B16002 ΔE 0.032
- Sienna #A0522D ΔE 0.034
- Brick Orange #C14A09 ΔE 0.035
- Copper #B66325 ΔE 0.035
Use #B0551F 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.