#BB6439
Closest named color: Copper (#B66325). oklch(59.6% 0.126 45.6), rgb(187, 100, 57).
Aa
Black text reads best on this color (4.99:1).
About this color
#BB6439 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 60%, its chroma 0.126 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.020 away. Black text reads best on it, at 4.99:1.
| Hue family | Browns |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #BB6439 |
| RGB | rgb(187, 100, 57) |
| HSL | hsl(20, 53%, 48%) |
| OKLCH | oklch(59.6% 0.126 45.6) |
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 #BB6439 | 4.20:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #BB6439 | 4.99:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #BB6439 text on white | 4.20:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #BB6439 text on black | 4.99:1 | AA | Lc -33.1 | 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 500.
-
Step 50
50
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F5E6E0
oklch(93.5% 0.018 43.2)
-
Step 200
200
#EDD3C7
oklch(88.5% 0.033 46.4)
-
Step 300
300
#E3B5A0
oklch(80.9% 0.061 45.8)
-
Step 400
400
#D48D6C
oklch(70.8% 0.098 45.6)
-
Step 500
500 (this color)
#BB6439
oklch(59.6% 0.126 45.6)
-
Step 600
600
#B25422
oklch(55.5% 0.137 45.4)
-
Step 700
700
#994414
oklch(49.1% 0.127 45.5)
-
Step 800
800
#7C3915
oklch(42.7% 0.105 45.7)
-
Step 900
900
#643218
oklch(37.7% 0.081 46.4)
-
Step 950
950
#3B1D0F
oklch(26.9% 0.053 44.9)
#BB6439 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) | #7C7035 | 0.113 |
| Deuteranopia (no green cones) | #918338 | 0.104 |
| Tritanopia (no blue cones) | #CC535A | 0.069 |
| Achromatopsia (no color) | #7B7B7B | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB6439
#BB6439
oklch(59.6% 0.126 45.6)
- #008CB2
#008CB2
oklch(59.6% 0.113 225.6)
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 #BB6439, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.020
- Adobe #BD6C48 ΔE 0.021
- Clay #B66A50 ΔE 0.025
- Terra Cotta #C9643B ΔE 0.026
- Tiger's Eye #BC6C25 ΔE 0.030
- Terracotta #CA6641 ΔE 0.030
- Orange Brown #BE6400 ΔE 0.032
- Clay Brown #B2713D ΔE 0.033
Use #BB6439 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.