#B5481B
Closest named color: Sinopia (#BB3E03). oklch(54.2% 0.152 40.4), rgb(181, 72, 27).
Aa
White text reads best on this color (5.37:1).
About this color
#B5481B is a medium-dark, vivid orange. In OKLCH its lightness is 54%, its chroma 0.152 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.019 away. White text reads best on it, at 5.37:1.
| Hue family | Oranges |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.90:1 |
| White text | 5.37:1 |
Values
| HEX | #B5481B |
| RGB | rgb(181, 72, 27) |
| HSL | hsl(18, 74%, 41%) |
| OKLCH | oklch(54.2% 0.152 40.4) |
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 #B5481B | 5.37:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #B5481B | 3.90:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #B5481B text on white | 5.37:1 | AA | Lc 76.0 | Fine for body text |
| #B5481B text on black | 3.90:1 | AA large text | Lc -25.8 | 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
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#F0D1C6
oklch(88.4% 0.038 40.5)
-
Step 300
300
#E8B29F
oklch(80.8% 0.069 40.2)
-
Step 400
400
#DB886B
oklch(70.7% 0.11 40)
-
Step 500
500
#CE6842
oklch(63% 0.14 40.6)
-
Step 600
600 (this color)
#B5481B
oklch(54.2% 0.152 40.4)
-
Step 700
700
#A03D12
oklch(49.2% 0.141 40.6)
-
Step 800
800
#823313
oklch(42.7% 0.117 40.4)
-
Step 900
900
#692E17
oklch(37.8% 0.092 40.9)
-
Step 950
950
#3E1B0F
oklch(27% 0.059 39.4)
#B5481B 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) | #675B13 | 0.149 |
| Deuteranopia (no green cones) | #827416 | 0.136 |
| Tritanopia (no blue cones) | #C72C3F | 0.071 |
| Achromatopsia (no color) | #6A6A6A | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5481B
#B5481B
oklch(54.2% 0.152 40.4)
- #007C97
#007C97
oklch(54.2% 0.099 220.1)
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 #B5481B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.019
- Brick Orange #C14A09 ΔE 0.026
- Cinnamon #AC4F06 ΔE 0.026
- Burnt Siena #B75203 ΔE 0.027
- Burnt Orange #C04E01 ΔE 0.029
- Sienna #A0522D ΔE 0.041
- Burnt Umber #A0450E ΔE 0.044
- Rust Orange #C45508 ΔE 0.045
Use #B5481B 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.