#B55151
Closest named color: Dusty Red (#B9484E). oklch(56.2% 0.131 22.2), rgb(181, 81, 81).
Aa
White text reads best on this color (4.92:1).
About this color
#B55151 is a medium-dark, moderately saturated red. In OKLCH its lightness is 56%, its chroma 0.131 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Dusty Red (#B9484E), ΔE 0.018 away. White text reads best on it, at 4.92:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.131) |
| Temperature | warm |
| Nearest name | Dusty Red (#B9484E) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #B55151 |
| RGB | rgb(181, 81, 81) |
| HSL | hsl(0, 40%, 51%) |
| OKLCH | oklch(56.2% 0.131 22.2) |
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 #B55151 | 4.92:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #B55151 | 4.26:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #B55151 text on white | 4.92:1 | AA | Lc 73.6 | Content text, not long reading |
| #B55151 text on black | 4.26:1 | AA large text | Lc -28.1 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F5E6E5
oklch(93.7% 0.016 22.1)
-
Step 200
200
#EED1CF
oklch(88.4% 0.033 22.5)
-
Step 300
300
#E4B2AF
oklch(80.8% 0.059 22.4)
-
Step 400
400
#D58986
oklch(70.7% 0.094 22.2)
-
Step 500
500
#C86A68
oklch(63.2% 0.12 22.3)
-
Step 600
600 (this color)
#B55151
oklch(56.2% 0.131 22.2)
-
Step 700
700
#9A3F40
oklch(49.1% 0.122 22)
-
Step 800
800
#7D3535
oklch(42.7% 0.101 22.3)
-
Step 900
900
#652F2E
oklch(37.8% 0.078 22.6)
-
Step 950
950
#3B1C1B
oklch(27% 0.049 22.8)
#B55151 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) | #696350 | 0.139 |
| Deuteranopia (no green cones) | #82784F | 0.128 |
| Tritanopia (no blue cones) | #C54152 | 0.039 |
| Achromatopsia (no color) | #707070 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B55151
#B55151
oklch(56.2% 0.131 22.2)
- #00858D
#00858D
oklch(56.1% 0.096 202.2)
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 #B55151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Red #B9484E ΔE 0.018
- Dark Rose #B5485D ΔE 0.030
- Dull Red #BB3F3F ΔE 0.035
- Light Maroon #A24857 ΔE 0.047
- Dark Coral #CF524E ΔE 0.050
- Deep Rose #C74767 ΔE 0.052
- Light Burgundy #A8415B ΔE 0.053
- Indian Red #CD5C5C ΔE 0.055
Use #B55151 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.