#BB5003
Closest named color: Burnt Siena (#B75203). oklch(56.1% 0.156 46.4), rgb(187, 80, 3).
Aa
White text reads best on this color (4.92:1).
About this color
#BB5003 is a medium-dark, vivid orange. In OKLCH its lightness is 56%, its chroma 0.156 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.008 away. White text reads best on it, at 4.92:1.
| Hue family | Oranges |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #BB5003 |
| RGB | rgb(187, 80, 3) |
| HSL | hsl(25, 97%, 37%) |
| OKLCH | oklch(56.1% 0.156 46.4) |
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 #BB5003 | 4.92:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #BB5003 | 4.26:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #BB5003 text on white | 4.92:1 | AA | Lc 73.3 | Content text, not long reading |
| #BB5003 text on black | 4.26:1 | AA large text | Lc -28.4 | 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
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F6E6DF
oklch(93.6% 0.02 45.3)
-
Step 200
200
#F0D2C4
oklch(88.5% 0.039 46.6)
-
Step 300
300
#E8B39B
oklch(80.9% 0.07 45.5)
-
Step 400
400
#DA8A63
oklch(70.8% 0.112 46.4)
-
Step 500
500
#CE6A34
oklch(63.2% 0.143 46.6)
-
Step 600
600 (this color)
#BB5003
oklch(56.1% 0.156 46.4)
-
Step 700
700
#9C4100
oklch(49% 0.137 46.5)
-
Step 800
800
#813400
oklch(42.6% 0.119 46.2)
-
Step 900
900
#682F0E
oklch(37.7% 0.093 46.8)
-
Step 950
950
#3D1C0A
oklch(27% 0.059 47.2)
#BB5003 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) | #6F6100 | 0.143 |
| Deuteranopia (no green cones) | #897A00 | 0.130 |
| Tritanopia (no blue cones) | #CE3544 | 0.084 |
| Achromatopsia (no color) | #707070 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB5003
#BB5003
oklch(56.1% 0.156 46.4)
- #0081A5
#0081A5
oklch(56.2% 0.108 226.1)
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 #BB5003, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.008
- Burnt Orange #C04E01 ΔE 0.010
- Brick Orange #C14A09 ΔE 0.016
- Rust Orange #C45508 ΔE 0.022
- Cinnamon #AC4F06 ΔE 0.029
- Sinopia #BB3E03 ΔE 0.035
- Orangey Brown #B16002 ΔE 0.038
- Copper #B66325 ΔE 0.039
Use #BB5003 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.