#BB3F36
Closest named color: Dull Red (#BB3F3F). oklch(54.3% 0.161 27.8), rgb(187, 63, 54).
Aa
White text reads best on this color (5.41:1).
About this color
#BB3F36 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.161 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.011 away. White text reads best on it, at 5.41:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.87:1 |
| White text | 5.41:1 |
Values
| HEX | #BB3F36 |
| RGB | rgb(187, 63, 54) |
| HSL | hsl(4, 55%, 47%) |
| OKLCH | oklch(54.3% 0.161 27.8) |
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 #BB3F36 | 5.41:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #BB3F36 | 3.87:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #BB3F36 text on white | 5.41:1 | AA | Lc 76.0 | Fine for body text |
| #BB3F36 text on black | 3.87:1 | AA large text | Lc -25.7 | Dividers and decoration only |
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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E2
oklch(93.6% 0.021 28.3)
-
Step 200
200
#F3D0CB
oklch(88.6% 0.04 27.5)
-
Step 300
300
#ECAFA7
oklch(80.8% 0.073 27.2)
-
Step 400
400
#E08378
oklch(70.7% 0.117 27.5)
-
Step 500
500
#D46155
oklch(63.1% 0.148 28)
-
Step 600
600 (this color)
#BB3F36
oklch(54.3% 0.161 27.8)
-
Step 700
700
#A5342C
oklch(49.1% 0.15 28)
-
Step 800
800
#862C25
oklch(42.7% 0.125 28)
-
Step 900
900
#6C2923
oklch(37.7% 0.097 27.7)
-
Step 950
950
#3F1915
oklch(26.9% 0.06 27.9)
#BB3F36 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) | #615934 | 0.171 |
| Deuteranopia (no green cones) | #807432 | 0.157 |
| Tritanopia (no blue cones) | #CD1E3E | 0.052 |
| Achromatopsia (no color) | #6A6A6A | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB3F36
#BB3F36
oklch(54.3% 0.161 27.8)
- #007E8C
#007E8C
oklch(54.3% 0.093 208.4)
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 #BB3F36, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.011
- Dusty Red #B9484E ΔE 0.028
- Sinopia #BB3E03 ΔE 0.034
- Brick Orange #C14A09 ΔE 0.045
- Rusty Red #AF2F0D ΔE 0.047
- Dark Rose #B5485D ΔE 0.049
- Firebrick #B22222 ΔE 0.050
- Burnt Orange #C04E01 ΔE 0.053
Use #BB3F36 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.