#BB5A2F
Closest named color: Rust Orange (#C45508). oklch(57.9% 0.137 42.9), rgb(187, 90, 47).
Aa
Black text reads best on this color (4.61:1).
About this color
#BB5A2F is a medium-dark, moderately saturated brown. In OKLCH its lightness is 58%, its chroma 0.137 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.024 away. Black text reads best on it, at 4.61:1.
| Hue family | Browns |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.137) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.61:1 |
| White text | 4.54:1 |
Values
| HEX | #BB5A2F |
| RGB | rgb(187, 90, 47) |
| HSL | hsl(18, 60%, 46%) |
| OKLCH | oklch(57.9% 0.137 42.9) |
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 #BB5A2F | 4.54:1 | AA | Lc -76.5 | Fine for body text |
| Black text on #BB5A2F | 4.61:1 | AA | Lc 33.0 | Non-text elements, placeholder text |
| #BB5A2F text on white | 4.54:1 | AA | Lc 71.0 | Content text, not long reading |
| #BB5A2F text on black | 4.61:1 | AA | Lc -30.6 | 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
#F5E6E1
oklch(93.5% 0.018 39.4)
-
Step 200
200
#EED2C7
oklch(88.4% 0.035 42.7)
-
Step 300
300
#E4B4A1
oklch(80.8% 0.062 42.6)
-
Step 400
400
#D58C6E
oklch(70.7% 0.099 43.1)
-
Step 500
500
#C86D47
oklch(63.1% 0.127 42.7)
-
Step 600
600 (this color)
#BB5A2F
oklch(57.9% 0.137 42.9)
-
Step 700
700
#9A431A
oklch(49.1% 0.128 43)
-
Step 800
800
#7D3818
oklch(42.8% 0.106 43.3)
-
Step 900
900
#65311A
oklch(37.7% 0.083 43.4)
-
Step 950
950
#3B1D10
oklch(26.9% 0.052 43.5)
#BB5A2F 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) | #75692A | 0.129 |
| Deuteranopia (no green cones) | #8C7E2D | 0.118 |
| Tritanopia (no blue cones) | #CD4651 | 0.070 |
| Achromatopsia (no color) | #767676 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB5A2F
#BB5A2F
oklch(57.9% 0.137 42.9)
- #0087A8
#0087A8
oklch(57.9% 0.108 223)
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 #BB5A2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.024
- Copper #B66325 ΔE 0.026
- Burnt Siena #B75203 ΔE 0.028
- Burnt Orange #C04E01 ΔE 0.028
- Brick Orange #C14A09 ΔE 0.033
- Terra Cotta #C9643B ΔE 0.037
- Rusty Orange #CD5909 ΔE 0.037
- Orangey Brown #B16002 ΔE 0.038
Use #BB5A2F 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.