#BB5337
Closest named color: Brick Orange (#C14A09). oklch(56.9% 0.141 36), rgb(187, 83, 55).
Aa
White text reads best on this color (4.76:1).
About this color
#BB5337 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.141 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Orange (#C14A09), ΔE 0.030 away. White text reads best on it, at 4.76:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.141) |
| Temperature | warm |
| Nearest name | Brick Orange (#C14A09) |
| Black text | 4.40:1 |
| White text | 4.76:1 |
Values
| HEX | #BB5337 |
| RGB | rgb(187, 83, 55) |
| HSL | hsl(13, 55%, 47%) |
| OKLCH | oklch(56.9% 0.141 36) |
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 #BB5337 | 4.76:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #BB5337 | 4.40:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #BB5337 text on white | 4.76:1 | AA | Lc 72.5 | Content text, not long reading |
| #BB5337 text on black | 4.40:1 | AA large text | Lc -29.2 | 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
#EFD2C9
oklch(88.6% 0.035 38)
-
Step 300
300
#E6B3A5
oklch(80.9% 0.063 35.9)
-
Step 400
400
#D88974
oklch(70.7% 0.102 35.6)
-
Step 500
500
#CB6A4F
oklch(63.1% 0.13 36.5)
-
Step 600
600 (this color)
#BB5337
oklch(56.9% 0.141 36)
-
Step 700
700
#9D3F26
oklch(49.1% 0.131 35.8)
-
Step 800
800
#7F3521
oklch(42.7% 0.108 36.1)
-
Step 900
900
#672F20
oklch(37.8% 0.085 36)
-
Step 950
950
#3C1C13
oklch(26.9% 0.053 36.6)
#BB5337 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) | #6F6434 | 0.140 |
| Deuteranopia (no green cones) | #897B34 | 0.128 |
| Tritanopia (no blue cones) | #CD3D4D | 0.062 |
| Achromatopsia (no color) | #737373 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB5337
#BB5337
oklch(56.9% 0.141 36)
- #00859D
#00859D
oklch(56.8% 0.101 216.4)
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 #BB5337, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Orange #C14A09 ΔE 0.030
- Burnt Orange #C04E01 ΔE 0.031
- Burnt Siena #B75203 ΔE 0.034
- Rust Orange #C45508 ΔE 0.035
- Dusty Red #B9484E ΔE 0.043
- Sinopia #BB3E03 ΔE 0.044
- Dull Red #BB3F3F ΔE 0.044
- Copper #B66325 ΔE 0.045
Use #BB5337 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.