#BB641F
Closest named color: Copper (#B66325). oklch(59.4% 0.136 53.6), rgb(187, 100, 31).
Aa
Black text reads best on this color (4.95:1).
About this color
#BB641F is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.136 and its hue 54°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.010 away. Black text reads best on it, at 4.95:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.136) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.95:1 |
| White text | 4.23:1 |
Values
| HEX | #BB641F |
| RGB | rgb(187, 100, 31) |
| HSL | hsl(27, 72%, 43%) |
| OKLCH | oklch(59.4% 0.136 53.6) |
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 #BB641F | 4.23:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #BB641F | 4.95:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #BB641F text on white | 4.23:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #BB641F text on black | 4.95:1 | AA | Lc -32.9 | 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
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F5E7DE
oklch(93.7% 0.02 55.1)
-
Step 200
200
#EED3C3
oklch(88.5% 0.037 52.7)
-
Step 300
300
#E4B699
oklch(81% 0.066 53.8)
-
Step 400
400
#D48E5F
oklch(70.7% 0.106 54)
-
Step 500
500 (this color)
#BB641F
oklch(59.4% 0.136 53.6)
-
Step 600
600
#B05700
oklch(55.5% 0.14 53.4)
-
Step 700
700
#954900
oklch(49.2% 0.124 53.7)
-
Step 800
800
#7B3B00
oklch(42.8% 0.108 53.6)
-
Step 900
900
#653208
oklch(37.7% 0.089 53.6)
-
Step 950
950
#3B1E08
oklch(27% 0.056 54.6)
#BB641F 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) | #7E6F13 | 0.111 |
| Deuteranopia (no green cones) | #92831E | 0.102 |
| Tritanopia (no blue cones) | #CD5157 | 0.087 |
| Achromatopsia (no color) | #7B7B7B | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB641F
#BB641F
oklch(59.4% 0.136 53.6)
- #0089BC
#0089BC
oklch(59.3% 0.124 233.7)
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 #BB641F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.010
- Orange Brown #BE6400 ΔE 0.012
- Tiger's Eye #BC6C25 ΔE 0.019
- Brown Orange #B96902 ΔE 0.019
- Umber #B26400 ΔE 0.022
- Orangey Brown #B16002 ΔE 0.025
- Rust #CA6702 ΔE 0.031
- Rust Orange #C45508 ΔE 0.032
Use #BB641F 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.