#BB5D21
Closest named color: Copper (#B66325). oklch(58.3% 0.14 48.8), rgb(187, 93, 33).
Aa
Black text reads best on this color (4.70:1).
About this color
#BB5D21 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 58%, its chroma 0.140 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.015 away. Black text reads best on it, at 4.70:1.
| Hue family | Browns |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.140) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.70:1 |
| White text | 4.46:1 |
Values
| HEX | #BB5D21 |
| RGB | rgb(187, 93, 33) |
| HSL | hsl(23, 70%, 43%) |
| OKLCH | oklch(58.3% 0.14 48.8) |
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 #BB5D21 | 4.46:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #BB5D21 | 4.70:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #BB5D21 text on white | 4.46:1 | AA large text | Lc 70.5 | Content text, not long reading |
| #BB5D21 text on black | 4.70:1 | AA | Lc -31.2 | 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 600.
-
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
#D48D67
oklch(70.7% 0.101 48.7)
-
Step 500
500
#C76F3C
oklch(63.1% 0.129 48.9)
-
Step 600
600 (this color)
#BB5D21
oklch(58.3% 0.14 48.8)
-
Step 700
700
#994504
oklch(49.2% 0.13 49)
-
Step 800
800
#7C390B
oklch(42.7% 0.108 48.9)
-
Step 900
900
#643214
oklch(37.7% 0.083 48.8)
-
Step 950
950
#3B1E0D
oklch(27.1% 0.053 49.4)
#BB5D21 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) | #786A17 | 0.124 |
| Deuteranopia (no green cones) | #8F7F1F | 0.111 |
| Tritanopia (no blue cones) | #CD4851 | 0.081 |
| Achromatopsia (no color) | #777777 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB5D21
#BB5D21
oklch(58.3% 0.14 48.8)
- #0087B1
#0087B1
oklch(58.3% 0.115 229)
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 #BB5D21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.015
- Rust Orange #C45508 ΔE 0.021
- Orange Brown #BE6400 ΔE 0.025
- Orangey Brown #B16002 ΔE 0.026
- Burnt Siena #B75203 ΔE 0.026
- Umber #B26400 ΔE 0.030
- Burnt Orange #C04E01 ΔE 0.030
- Rusty Orange #CD5909 ΔE 0.033
Use #BB5D21 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.