#B1520E
Closest named color: Burnt Siena (#B75203). oklch(54.9% 0.142 48.6), rgb(177, 82, 14).
Aa
White text reads best on this color (5.14:1).
About this color
#B1520E is a medium-dark, vivid orange. In OKLCH its lightness is 55%, its chroma 0.142 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.012 away. White text reads best on it, at 5.14:1.
| Hue family | Oranges |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.142) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.08:1 |
| White text | 5.14:1 |
Values
| HEX | #B1520E |
| RGB | rgb(177, 82, 14) |
| HSL | hsl(25, 85%, 37%) |
| OKLCH | oklch(54.9% 0.142 48.6) |
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 #B1520E | 5.14:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #B1520E | 4.08:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #B1520E text on white | 5.14:1 | AA | Lc 74.8 | Content text, not long reading |
| #B1520E text on black | 4.08:1 | AA large text | Lc -26.9 | 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
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F5E7DF
oklch(93.7% 0.019 52)
-
Step 200
200
#EED3C5
oklch(88.6% 0.036 49.2)
-
Step 300
300
#E4B59D
oklch(80.9% 0.064 48.4)
-
Step 400
400
#D58D66
oklch(70.8% 0.103 49)
-
Step 500
500
#C86E3B
oklch(63.1% 0.131 48.3)
-
Step 600
600 (this color)
#B1520E
oklch(54.9% 0.142 48.6)
-
Step 700
700
#9A4400
oklch(49.2% 0.132 48.7)
-
Step 800
800
#7D3808
oklch(42.6% 0.11 48.4)
-
Step 900
900
#653112
oklch(37.6% 0.086 48.3)
-
Step 950
950
#3B1D0C
oklch(26.9% 0.054 48.5)
#B1520E 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) | #6E6000 | 0.127 |
| Deuteranopia (no green cones) | #857609 | 0.115 |
| Tritanopia (no blue cones) | #C33C46 | 0.081 |
| Achromatopsia (no color) | #6D6D6D | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1520E
#B1520E
oklch(54.9% 0.142 48.6)
- #007CA3
#007CA3
oklch(54.8% 0.108 229)
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 #B1520E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.012
- Cinnamon #AC4F06 ΔE 0.013
- Burnt Orange #C04E01 ΔE 0.028
- Brick Orange #C14A09 ΔE 0.032
- Raw Umber #A75E09 ΔE 0.032
- Orangey Brown #B16002 ΔE 0.034
- Sienna #A0522D ΔE 0.037
- Rust Orange #C45508 ΔE 0.038
Use #B1520E 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.