#BB3C40
Closest named color: Dull Red (#BB3F3F). oklch(54.1% 0.163 22.7), rgb(187, 60, 64).
Aa
White text reads best on this color (5.47:1).
About this color
#BB3C40 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.163 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.006 away. White text reads best on it, at 5.47:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.163) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.83:1 |
| White text | 5.47:1 |
Values
| HEX | #BB3C40 |
| RGB | rgb(187, 60, 64) |
| HSL | hsl(358, 51%, 48%) |
| OKLCH | oklch(54.1% 0.163 22.7) |
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 #BB3C40 | 5.47:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #BB3C40 | 3.83:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #BB3C40 text on white | 5.47:1 | AA | Lc 76.3 | Fine for body text |
| #BB3C40 text on black | 3.83:1 | AA large text | Lc -25.4 | 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
#F8E5E3
oklch(93.7% 0.021 24.8)
-
Step 200
200
#F3CFCD
oklch(88.4% 0.041 21.7)
-
Step 300
300
#EDAEAB
oklch(80.9% 0.074 21.9)
-
Step 400
400
#E0827E
oklch(70.7% 0.117 23)
-
Step 500
500
#D55F5E
oklch(63.2% 0.15 22.8)
-
Step 600
600 (this color)
#BB3C40
oklch(54.1% 0.163 22.7)
-
Step 700
700
#A53236
oklch(49.1% 0.151 22.8)
-
Step 800
800
#862B2D
oklch(42.7% 0.125 22.9)
-
Step 900
900
#6C2828
oklch(37.7% 0.098 23)
-
Step 950
950
#401818
oklch(27% 0.063 22.2)
#BB3C40 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) | #5E583F | 0.177 |
| Deuteranopia (no green cones) | #7E733C | 0.162 |
| Tritanopia (no blue cones) | #CD1B3F | 0.046 |
| Achromatopsia (no color) | #696969 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB3C40
#BB3C40
oklch(54.1% 0.163 22.7)
- #007E86
#007E86
oklch(54% 0.092 202.6)
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 #BB3C40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.006
- Dusty Red #B9484E ΔE 0.023
- Dark Rose #B5485D ΔE 0.039
- Sinopia #BB3E03 ΔE 0.048
- Firebrick #B22222 ΔE 0.049
- Light Burgundy #A8415B ΔE 0.051
- Lipstick Red #C0022F ΔE 0.052
- Rusty Red #AF2F0D ΔE 0.053
Use #BB3C40 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.