#BB581F
Closest named color: Rust Orange (#C45508). oklch(57.5% 0.144 46.4), rgb(187, 88, 31).
Aa
White text reads best on this color (4.63:1).
About this color
#BB581F is a medium-dark, vivid orange. In OKLCH its lightness is 57%, its chroma 0.144 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.018 away. White text reads best on it, at 4.63:1.
| Hue family | Oranges |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.52:1 |
| White text | 4.63:1 |
Values
| HEX | #BB581F |
| RGB | rgb(187, 88, 31) |
| HSL | hsl(22, 72%, 43%) |
| OKLCH | oklch(57.5% 0.144 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 #BB581F | 4.63:1 | AA | Lc -77.1 | Fine for body text |
| Black text on #BB581F | 4.52:1 | AA | Lc 32.5 | Non-text elements, placeholder text |
| #BB581F text on white | 4.63:1 | AA | Lc 71.6 | Content text, not long reading |
| #BB581F text on black | 4.52:1 | AA | Lc -30.1 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F5E6E0
oklch(93.5% 0.018 43.2)
-
Step 200
200
#EED2C6
oklch(88.4% 0.035 44.6)
-
Step 300
300
#E5B49E
oklch(80.9% 0.065 45.4)
-
Step 400
400
#D68C68
oklch(70.7% 0.103 46.5)
-
Step 500
500
#C96D3D
oklch(63.1% 0.132 46.6)
-
Step 600
600 (this color)
#BB581F
oklch(57.5% 0.144 46.4)
-
Step 700
700
#9B4206
oklch(49% 0.134 46.4)
-
Step 800
800
#7E370C
oklch(42.7% 0.111 46.4)
-
Step 900
900
#663114
oklch(37.8% 0.086 46.8)
-
Step 950
950
#3C1D0D
oklch(27% 0.055 46.6)
#BB581F 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) | #746716 | 0.132 |
| Deuteranopia (no green cones) | #8C7D1C | 0.120 |
| Tritanopia (no blue cones) | #CE424D | 0.079 |
| Achromatopsia (no color) | #757575 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB581F
#BB581F
oklch(57.5% 0.144 46.4)
- #0085AA
#0085AA
oklch(57.4% 0.11 226.1)
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 #BB581F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.018
- Burnt Siena #B75203 ΔE 0.018
- Burnt Orange #C04E01 ΔE 0.020
- Copper #B66325 ΔE 0.024
- Brick Orange #C14A09 ΔE 0.027
- Orangey Brown #B16002 ΔE 0.031
- Orange Brown #BE6400 ΔE 0.034
- Rusty Orange #CD5909 ΔE 0.035
Use #BB581F 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.