#BB5431
Closest named color: Burnt Orange (#C04E01). oklch(57% 0.142 38.9), rgb(187, 84, 49).
Aa
White text reads best on this color (4.74:1).
About this color
#BB5431 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.142 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Orange (#C04E01), ΔE 0.026 away. White text reads best on it, at 4.74:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.142) |
| Temperature | warm |
| Nearest name | Burnt Orange (#C04E01) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #BB5431 |
| RGB | rgb(187, 84, 49) |
| HSL | hsl(15, 58%, 46%) |
| OKLCH | oklch(57% 0.142 38.9) |
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 #BB5431 | 4.74:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #BB5431 | 4.42:1 | AA large text | Lc 31.8 | Non-text elements, placeholder text |
| #BB5431 text on white | 4.74:1 | AA | Lc 72.3 | Content text, not long reading |
| #BB5431 text on black | 4.42:1 | AA large text | Lc -29.4 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E1
oklch(93.6% 0.019 38.1)
-
Step 200
200
#EFD2C8
oklch(88.5% 0.035 40)
-
Step 300
300
#E6B3A3
oklch(80.9% 0.064 38.1)
-
Step 400
400
#D78A71
oklch(70.7% 0.101 38.7)
-
Step 500
500
#CB6A4B
oklch(63.1% 0.131 38.4)
-
Step 600
600 (this color)
#BB5431
oklch(57% 0.142 38.9)
-
Step 700
700
#9D401F
oklch(49.2% 0.132 39)
-
Step 800
800
#7F351C
oklch(42.6% 0.109 38.7)
-
Step 900
900
#672F1D
oklch(37.7% 0.086 38.4)
-
Step 950
950
#3C1C12
oklch(26.9% 0.053 38.1)
#BB5431 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) | #70652D | 0.139 |
| Deuteranopia (no green cones) | #897C2E | 0.128 |
| Tritanopia (no blue cones) | #CD3E4C | 0.065 |
| Achromatopsia (no color) | #737373 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB5431
#BB5431
oklch(57% 0.142 38.9)
- #0085A0
#0085A0
oklch(57% 0.103 218.8)
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 #BB5431, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Orange #C04E01 ΔE 0.026
- Brick Orange #C14A09 ΔE 0.026
- Burnt Siena #B75203 ΔE 0.028
- Rust Orange #C45508 ΔE 0.029
- Copper #B66325 ΔE 0.039
- Cinnamon #AC4F06 ΔE 0.042
- Sinopia #BB3E03 ΔE 0.043
- Rusty Orange #CD5909 ΔE 0.044
Use #BB5431 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.