#BB6539
Closest named color: Adobe (#BD6C48). oklch(59.8% 0.125 46.3), rgb(187, 101, 57).
Aa
Black text reads best on this color (5.03:1).
About this color
#BB6539 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 60%, its chroma 0.125 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Adobe (#BD6C48), ΔE 0.020 away. Black text reads best on it, at 5.03:1.
| Hue family | Browns |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.125) |
| Temperature | warm |
| Nearest name | Adobe (#BD6C48) |
| Black text | 5.03:1 |
| White text | 4.17:1 |
Values
| HEX | #BB6539 |
| RGB | rgb(187, 101, 57) |
| HSL | hsl(20, 53%, 48%) |
| OKLCH | oklch(59.8% 0.125 46.3) |
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 #BB6539 | 4.17:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #BB6539 | 5.03:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #BB6539 text on white | 4.17:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #BB6539 text on black | 5.03:1 | AA | Lc -33.3 | 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
#F5E7E0
oklch(93.7% 0.018 48.5)
-
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
#D38D6C
oklch(70.6% 0.097 45.9)
-
Step 500
500 (this color)
#BB6539
oklch(59.8% 0.125 46.3)
-
Step 600
600
#B15522
oklch(55.5% 0.135 46.2)
-
Step 700
700
#984514
oklch(49.1% 0.126 46.4)
-
Step 800
800
#7C3914
oklch(42.7% 0.105 46.1)
-
Step 900
900
#643218
oklch(37.7% 0.081 46.4)
-
Step 950
950
#3B1E0F
oklch(27.1% 0.052 47)
#BB6539 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) | #7D7034 | 0.111 |
| Deuteranopia (no green cones) | #918338 | 0.102 |
| Tritanopia (no blue cones) | #CC545B | 0.070 |
| Achromatopsia (no color) | #7C7C7C | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB6539
#BB6539
oklch(59.8% 0.125 46.3)
- #008DB4
#008DB4
oklch(59.9% 0.115 226.1)
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 #BB6539, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Adobe #BD6C48 ΔE 0.020
- Copper #B66325 ΔE 0.020
- Clay #B66A50 ΔE 0.025
- Terra Cotta #C9643B ΔE 0.026
- Tiger's Eye #BC6C25 ΔE 0.028
- Terracotta #CA6641 ΔE 0.030
- Clay Brown #B2713D ΔE 0.031
- Orange Brown #BE6400 ΔE 0.032
Use #BB6539 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.