#BB343C
Closest named color: Dull Red (#BB3F3F). oklch(53.2% 0.171 22.1), rgb(187, 52, 60).
Aa
White text reads best on this color (5.72:1).
About this color
#BB343C is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.171 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.018 away. White text reads best on it, at 5.72:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.171) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.66:1 |
| White text | 5.72:1 |
Values
| HEX | #BB343C |
| RGB | rgb(187, 52, 60) |
| HSL | hsl(356, 56%, 47%) |
| OKLCH | oklch(53.2% 0.171 22.1) |
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 #BB343C | 5.72:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #BB343C | 3.66:1 | AA large text | Lc 26.7 | Dividers and decoration only |
| #BB343C text on white | 5.72:1 | AA | Lc 77.4 | Fine for body text |
| #BB343C text on black | 3.66:1 | AA large text | Lc -24.3 | 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
#F9E4E3
oklch(93.5% 0.023 20.9)
-
Step 200
200
#F4CFCC
oklch(88.5% 0.042 23.5)
-
Step 300
300
#EFADAA
oklch(80.9% 0.078 21.9)
-
Step 400
400
#E3807D
oklch(70.7% 0.123 22.5)
-
Step 500
500
#D85B5D
oklch(63.1% 0.158 21.8)
-
Step 600
600 (this color)
#BB343C
oklch(53.2% 0.171 22.1)
-
Step 700
700
#A82D35
oklch(49.1% 0.159 21.9)
-
Step 800
800
#89272C
oklch(42.7% 0.132 22)
-
Step 900
900
#6E2628
oklch(37.7% 0.103 21.8)
-
Step 950
950
#411717
oklch(27% 0.066 22.5)
#BB343C 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) | #5A543B | 0.187 |
| Deuteranopia (no green cones) | #7C7138 | 0.171 |
| Tritanopia (no blue cones) | #CD0038 | 0.046 |
| Achromatopsia (no color) | #666666 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB343C
#BB343C
oklch(53.2% 0.171 22.1)
- #007B83
#007B83
oklch(53.1% 0.09 202.8)
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 #BB343C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.018
- Dusty Red #B9484E ΔE 0.034
- Firebrick #B22222 ΔE 0.039
- Lipstick Red #C0022F ΔE 0.040
- Rose Red #BE013C ΔE 0.044
- Scarlet #BE0119 ΔE 0.045
- Dark Rose #B5485D ΔE 0.046
- Cherry #CF0234 ΔE 0.047
Use #BB343C 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.