#BB5110
Closest named color: Burnt Siena (#B75203). oklch(56.3% 0.153 45.5), rgb(187, 81, 16).
Aa
White text reads best on this color (4.88:1).
About this color
#BB5110 is a medium-dark, vivid orange. In OKLCH its lightness is 56%, its chroma 0.153 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.010 away. White text reads best on it, at 4.88:1.
| Hue family | Oranges |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.153) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.29:1 |
| White text | 4.88:1 |
Values
| HEX | #BB5110 |
| RGB | rgb(187, 81, 16) |
| HSL | hsl(23, 84%, 40%) |
| OKLCH | oklch(56.3% 0.153 45.5) |
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 #BB5110 | 4.88:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #BB5110 | 4.29:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #BB5110 text on white | 4.88:1 | AA | Lc 73.1 | Content text, not long reading |
| #BB5110 text on black | 4.29:1 | AA large text | Lc -28.6 | 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
#F6E6DF
oklch(93.6% 0.02 45.3)
-
Step 200
200
#F0D2C5
oklch(88.5% 0.038 44.8)
-
Step 300
300
#E7B39C
oklch(80.8% 0.069 45)
-
Step 400
400
#D98A65
oklch(70.7% 0.11 45.6)
-
Step 500
500
#CD6A38
oklch(63.1% 0.141 45.6)
-
Step 600
600 (this color)
#BB5110
oklch(56.3% 0.153 45.5)
-
Step 700
700
#9D4000
oklch(49% 0.139 45.7)
-
Step 800
800
#813505
oklch(42.8% 0.118 45.7)
-
Step 900
900
#682F11
oklch(37.8% 0.092 45.5)
-
Step 950
950
#3D1C0C
oklch(27% 0.058 45.1)
#BB5110 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) | #706200 | 0.142 |
| Deuteranopia (no green cones) | #8A7A09 | 0.128 |
| Tritanopia (no blue cones) | #CE3746 | 0.081 |
| Achromatopsia (no color) | #717171 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB5110
#BB5110
oklch(56.3% 0.153 45.5)
- #0082A5
#0082A5
oklch(56.4% 0.107 225.2)
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 #BB5110, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.010
- Burnt Orange #C04E01 ΔE 0.010
- Brick Orange #C14A09 ΔE 0.016
- Rust Orange #C45508 ΔE 0.021
- Cinnamon #AC4F06 ΔE 0.031
- Sinopia #BB3E03 ΔE 0.036
- Copper #B66325 ΔE 0.038
- Orangey Brown #B16002 ΔE 0.038
Use #BB5110 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.