#BB5738
Closest named color: Burnt Orange (#C04E01). oklch(57.6% 0.137 37.8), rgb(187, 87, 56).
Aa
White text reads best on this color (4.63:1).
About this color
#BB5738 is a medium-dark, moderately saturated red. In OKLCH its lightness is 58%, its chroma 0.137 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Orange (#C04E01), ΔE 0.032 away. White text reads best on it, at 4.63:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.137) |
| Temperature | warm |
| Nearest name | Burnt Orange (#C04E01) |
| Black text | 4.53:1 |
| White text | 4.63:1 |
Values
| HEX | #BB5738 |
| RGB | rgb(187, 87, 56) |
| HSL | hsl(14, 54%, 48%) |
| OKLCH | oklch(57.6% 0.137 37.8) |
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 #BB5738 | 4.63:1 | AA | Lc -77.1 | Fine for body text |
| Black text on #BB5738 | 4.53:1 | AA | Lc 32.5 | Non-text elements, placeholder text |
| #BB5738 text on white | 4.63:1 | AA | Lc 71.6 | Content text, not long reading |
| #BB5738 text on black | 4.53:1 | 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
#F5E6E1
oklch(93.5% 0.018 39.4)
-
Step 200
200
#EED2C9
oklch(88.5% 0.034 38.6)
-
Step 300
300
#E5B4A4
oklch(81% 0.062 38.9)
-
Step 400
400
#D68B73
oklch(70.8% 0.099 38.5)
-
Step 500
500
#C96B4F
oklch(63% 0.126 37.4)
-
Step 600
600 (this color)
#BB5738
oklch(57.6% 0.137 37.8)
-
Step 700
700
#9B4125
oklch(49.1% 0.128 37.6)
-
Step 800
800
#7E3620
oklch(42.7% 0.106 37.5)
-
Step 900
900
#66301F
oklch(37.8% 0.083 38.1)
-
Step 950
950
#3C1C13
oklch(26.9% 0.053 36.6)
#BB5738 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) | #726735 | 0.134 |
| Deuteranopia (no green cones) | #8A7D36 | 0.124 |
| Tritanopia (no blue cones) | #CD4350 | 0.062 |
| Achromatopsia (no color) | #757575 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB5738
#BB5738
oklch(57.6% 0.137 37.8)
- #0087A1
#0087A1
oklch(57.5% 0.103 217.7)
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 #BB5738, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Orange #C04E01 ΔE 0.032
- Rust Orange #C45508 ΔE 0.033
- Brick Orange #C14A09 ΔE 0.033
- Burnt Siena #B75203 ΔE 0.034
- Copper #B66325 ΔE 0.038
- Terra Cotta #C9643B ΔE 0.042
- Clay #B66A50 ΔE 0.043
- Rusty Orange #CD5909 ΔE 0.045
Use #BB5738 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.