#BB5800
Closest named color: Burnt Siena (#B75203). oklch(57.3% 0.15 50.7), rgb(187, 88, 0).
Aa
White text reads best on this color (4.65:1).
About this color
#BB5800 is a medium-dark, vivid orange. In OKLCH its lightness is 57%, its chroma 0.150 and its hue 51°. 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 4.65:1.
| Hue family | Oranges |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.50:1 |
| White text | 4.65:1 |
Values
| HEX | #BB5800 |
| RGB | rgb(187, 88, 0) |
| HSL | hsl(28, 100%, 37%) |
| OKLCH | oklch(57.3% 0.15 50.7) |
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 #BB5800 | 4.65:1 | AA | Lc -77.1 | Fine for body text |
| Black text on #BB5800 | 4.50:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #BB5800 text on white | 4.65:1 | AA | Lc 71.7 | Content text, not long reading |
| #BB5800 text on black | 4.50:1 | AA | Lc -30.0 | Non-text elements, placeholder text |
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
#F5E7DE
oklch(93.7% 0.02 55.1)
-
Step 200
200
#EED3C3
oklch(88.5% 0.037 52.7)
-
Step 300
300
#E5B59A
oklch(80.9% 0.067 50.8)
-
Step 400
400
#D68C61
oklch(70.6% 0.108 50.5)
-
Step 500
500
#CA6D30
oklch(63.1% 0.139 50.6)
-
Step 600
600 (this color)
#BB5800
oklch(57.3% 0.15 50.7)
-
Step 700
700
#984600
oklch(49.2% 0.129 50.6)
-
Step 800
800
#7D3900
oklch(42.8% 0.111 51.1)
-
Step 900
900
#66310B
oklch(37.7% 0.09 50.9)
-
Step 950
950
#3C1D09
oklch(27% 0.057 50.7)
#BB5800 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) | #756600 | 0.129 |
| Deuteranopia (no green cones) | #8D7D00 | 0.118 |
| Tritanopia (no blue cones) | #CE404B | 0.090 |
| Achromatopsia (no color) | #747474 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB5800
#BB5800
oklch(57.3% 0.15 50.7)
- #0083AF
#0083AF
oklch(57.2% 0.115 230.9)
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 #BB5800, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.016
- Rust Orange #C45508 ΔE 0.018
- Burnt Orange #C04E01 ΔE 0.022
- Orangey Brown #B16002 ΔE 0.024
- Copper #B66325 ΔE 0.025
- Orange Brown #BE6400 ΔE 0.028
- Brick Orange #C14A09 ΔE 0.030
- Umber #B26400 ΔE 0.030
Use #BB5800 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.