#BB5539
Closest named color: Brick Orange (#C14A09). oklch(57.3% 0.139 36.3), rgb(187, 85, 57).
Aa
White text reads best on this color (4.69:1).
About this color
#BB5539 is a medium-dark, moderately saturated red. In OKLCH its lightness is 57%, its chroma 0.139 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Orange (#C14A09), ΔE 0.033 away. White text reads best on it, at 4.69:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.139) |
| Temperature | warm |
| Nearest name | Brick Orange (#C14A09) |
| Black text | 4.47:1 |
| White text | 4.69:1 |
Values
| HEX | #BB5539 |
| RGB | rgb(187, 85, 57) |
| HSL | hsl(13, 53%, 48%) |
| OKLCH | oklch(57.3% 0.139 36.3) |
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 #BB5539 | 4.69:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #BB5539 | 4.47:1 | AA large text | Lc 32.1 | Non-text elements, placeholder text |
| #BB5539 text on white | 4.69:1 | AA | Lc 72.0 | Content text, not long reading |
| #BB5539 text on black | 4.47:1 | AA large text | Lc -29.7 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F6E6E2
oklch(93.7% 0.018 34.3)
-
Step 200
200
#EFD2CA
oklch(88.6% 0.034 35.9)
-
Step 300
300
#E6B3A5
oklch(80.9% 0.063 35.9)
-
Step 400
400
#D78A74
oklch(70.7% 0.1 36.7)
-
Step 500
500
#CA6B50
oklch(63.2% 0.127 36.7)
-
Step 600
600 (this color)
#BB5539
oklch(57.3% 0.139 36.3)
-
Step 700
700
#9C4027
oklch(49.1% 0.129 36.1)
-
Step 800
800
#7F3521
oklch(42.7% 0.108 36.1)
-
Step 900
900
#662F20
oklch(37.6% 0.083 36.2)
-
Step 950
950
#3C1C13
oklch(26.9% 0.053 36.6)
#BB5539 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) | #706636 | 0.138 |
| Deuteranopia (no green cones) | #897C37 | 0.126 |
| Tritanopia (no blue cones) | #CD404F | 0.061 |
| Achromatopsia (no color) | #747474 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB5539
#BB5539
oklch(57.3% 0.139 36.3)
- #00869F
#00869F
oklch(57.2% 0.102 217)
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 #BB5539, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Orange #C14A09 ΔE 0.033
- Burnt Orange #C04E01 ΔE 0.033
- Rust Orange #C45508 ΔE 0.035
- Burnt Siena #B75203 ΔE 0.035
- Copper #B66325 ΔE 0.042
- Dusty Red #B9484E ΔE 0.044
- Terra Cotta #C9643B ΔE 0.046
- Clay #B66A50 ΔE 0.046
Use #BB5539 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.