#BB613C
Closest named color: Copper (#B66325). oklch(59.2% 0.127 42.3), rgb(187, 97, 60).
Aa
Black text reads best on this color (4.88:1).
About this color
#BB613C is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.127 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.025 away. Black text reads best on it, at 4.88:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.127) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.88:1 |
| White text | 4.29:1 |
Values
| HEX | #BB613C |
| RGB | rgb(187, 97, 60) |
| HSL | hsl(17, 51%, 48%) |
| OKLCH | oklch(59.2% 0.127 42.3) |
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 #BB613C | 4.29:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #BB613C | 4.88:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #BB613C text on white | 4.29:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #BB613C text on black | 4.88:1 | AA | Lc -32.4 | 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
#F4E7E1
oklch(93.7% 0.016 46.6)
-
Step 200
200
#ECD3C9
oklch(88.5% 0.031 43.1)
-
Step 300
300
#E2B5A4
oklch(80.9% 0.058 41.7)
-
Step 400
400
#D18E73
oklch(70.7% 0.091 42.8)
-
Step 500
500
#C4704E
oklch(63.2% 0.117 42.4)
-
Step 600
600 (this color)
#BB613C
oklch(59.2% 0.127 42.3)
-
Step 700
700
#964624
oklch(49.1% 0.118 42.2)
-
Step 800
800
#7A3A1F
oklch(42.7% 0.098 42.4)
-
Step 900
900
#63321F
oklch(37.7% 0.077 41.4)
-
Step 950
950
#3A1E13
oklch(27% 0.048 41.9)
#BB613C 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) | #796E38 | 0.119 |
| Deuteranopia (no green cones) | #8F823B | 0.109 |
| Tritanopia (no blue cones) | #CC4F58 | 0.065 |
| Achromatopsia (no color) | #7A7A7A | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB613C
#BB613C
oklch(59.2% 0.127 42.3)
- #008BAC
#008BAC
oklch(59% 0.109 222.3)
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 #BB613C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.025
- Clay #B66A50 ΔE 0.025
- Adobe #BD6C48 ΔE 0.026
- Terra Cotta #C9643B ΔE 0.028
- Terracotta #CA6641 ΔE 0.032
- Rust Orange #C45508 ΔE 0.036
- Terracota #CB6843 ΔE 0.036
- Tiger's Eye #BC6C25 ΔE 0.038
Use #BB613C 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.