#BB6531
Closest named color: Copper (#B66325). oklch(59.7% 0.128 49.3), rgb(187, 101, 49).
Aa
Black text reads best on this color (5.01:1).
About this color
#BB6531 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 60%, its chroma 0.128 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.014 away. Black text reads best on it, at 5.01:1.
| Hue family | Browns |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.128) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #BB6531 |
| RGB | rgb(187, 101, 49) |
| HSL | hsl(23, 58%, 46%) |
| OKLCH | oklch(59.7% 0.128 49.3) |
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 #BB6531 | 4.18:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #BB6531 | 5.01:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #BB6531 text on white | 4.18:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #BB6531 text on black | 5.01:1 | AA | Lc -33.2 | 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 500.
-
Step 50
50
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F5E7DF
oklch(93.7% 0.019 52)
-
Step 200
200
#EDD3C5
oklch(88.5% 0.035 50.2)
-
Step 300
300
#E3B59D
oklch(80.8% 0.063 49)
-
Step 400
400
#D38D67
oklch(70.6% 0.1 49.1)
-
Step 500
500 (this color)
#BB6531
oklch(59.7% 0.128 49.3)
-
Step 600
600
#B25515
oklch(55.6% 0.14 49)
-
Step 700
700
#994503
oklch(49.2% 0.13 49.2)
-
Step 800
800
#7C390A
oklch(42.7% 0.108 49.1)
-
Step 900
900
#643213
oklch(37.7% 0.084 49.4)
-
Step 950
950
#3B1E0D
oklch(27.1% 0.053 49.4)
#BB6531 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) | #7D702B | 0.112 |
| Deuteranopia (no green cones) | #928330 | 0.101 |
| Tritanopia (no blue cones) | #CD535A | 0.077 |
| Achromatopsia (no color) | #7C7C7C | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB6531
#BB6531
oklch(59.7% 0.128 49.3)
- #008BB7
#008BB7
oklch(59.6% 0.118 229.5)
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 #BB6531, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.014
- Tiger's Eye #BC6C25 ΔE 0.022
- Orange Brown #BE6400 ΔE 0.024
- Adobe #BD6C48 ΔE 0.025
- Terra Cotta #C9643B ΔE 0.028
- Clay Brown #B2713D ΔE 0.030
- Brown Orange #B96902 ΔE 0.030
- Clay #B66A50 ΔE 0.031
Use #BB6531 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.