#BC5B37
Closest named color: Rust Orange (#C45508). oklch(58.3% 0.135 40.4), rgb(188, 91, 55).
Aa
Black text reads best on this color (4.68:1).
About this color
#BC5B37 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 58%, its chroma 0.135 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.029 away. Black text reads best on it, at 4.68:1.
| Hue family | Browns |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.68:1 |
| White text | 4.47:1 |
Values
| HEX | #BC5B37 |
| RGB | rgb(188, 91, 55) |
| HSL | hsl(16, 55%, 48%) |
| OKLCH | oklch(58.3% 0.135 40.4) |
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 #BC5B37 | 4.47:1 | AA large text | Lc -76.0 | Fine for body text |
| Black text on #BC5B37 | 4.68:1 | AA | Lc 33.5 | Non-text elements, placeholder text |
| #BC5B37 text on white | 4.47:1 | AA large text | Lc 70.6 | Content text, not long reading |
| #BC5B37 text on black | 4.68:1 | AA | Lc -31.1 | 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
#E4B4A3
oklch(80.9% 0.061 40.4)
-
Step 400
400
#D58C72
oklch(70.8% 0.097 40.4)
-
Step 500
500
#C86D4C
oklch(63.2% 0.125 40.4)
-
Step 600
600 (this color)
#BC5B37
oklch(58.3% 0.135 40.4)
-
Step 700
700
#9A4321
oklch(49.2% 0.126 40.6)
-
Step 800
800
#7D381D
oklch(42.8% 0.104 40.9)
-
Step 900
900
#65311E
oklch(37.8% 0.081 40.4)
-
Step 950
950
#3B1D12
oklch(27% 0.051 40.6)
#BC5B37 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) | #756A33 | 0.130 |
| Deuteranopia (no green cones) | #8D7F35 | 0.118 |
| Tritanopia (no blue cones) | #CE4753 | 0.066 |
| Achromatopsia (no color) | #777777 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BC5B37
#BC5B37
oklch(58.3% 0.135 40.4)
- #0089A7
#0089A7
oklch(58.3% 0.107 220.5)
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 #BC5B37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.029
- Copper #B66325 ΔE 0.030
- Terra Cotta #C9643B ΔE 0.034
- Burnt Orange #C04E01 ΔE 0.034
- Burnt Siena #B75203 ΔE 0.035
- Clay #B66A50 ΔE 0.036
- Brick Orange #C14A09 ΔE 0.037
- Adobe #BD6C48 ΔE 0.038
Use #BC5B37 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.