#B42557
Closest named color: Raspberry (#B00149). oklch(51.3% 0.18 5.9), rgb(180, 37, 87).
Aa
White text reads best on this color (6.28:1).
About this color
#B42557 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.180 and its hue 6°. Its hue sits on the warm side of the wheel. The nearest named color is Raspberry (#B00149), ΔE 0.032 away. White text reads best on it, at 6.28:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.180) |
| Temperature | warm |
| Nearest name | Raspberry (#B00149) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #B42557 |
| RGB | rgb(180, 37, 87) |
| HSL | hsl(339, 66%, 43%) |
| OKLCH | oklch(51.3% 0.18 5.9) |
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 #B42557 | 6.28:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #B42557 | 3.34:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #B42557 text on white | 6.28:1 | AA | Lc 79.8 | Fine for body text |
| #B42557 text on black | 3.34:1 | AA large text | Lc -22.0 | 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 700.
-
Step 50
50
#FDF2F4
oklch(97% 0.012 4.7)
-
Step 100
100
#FAE3E7
oklch(93.6% 0.026 5.7)
-
Step 200
200
#F7CDD4
oklch(88.6% 0.048 6.8)
-
Step 300
300
#F2A9B8
oklch(80.9% 0.088 5.7)
-
Step 400
400
#E87893
oklch(70.7% 0.14 6)
-
Step 500
500
#DD5079
oklch(63.1% 0.178 5.9)
-
Step 600
600
#C82C62
oklch(55.6% 0.193 5.9)
-
Step 700
700 (this color)
#B42557
oklch(51.3% 0.18 5.9)
-
Step 800
800
#8C1B42
oklch(42.7% 0.149 6.1)
-
Step 900
900
#711F38
oklch(37.8% 0.116 6.2)
-
Step 950
950
#421421
oklch(27% 0.072 5.9)
#B42557 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) | #4B4E58 | 0.202 |
| Deuteranopia (no green cones) | #706A54 | 0.183 |
| Tritanopia (no blue cones) | #C4003B | 0.047 |
| Achromatopsia (no color) | #606060 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B42557
#B42557
oklch(51.3% 0.18 5.9)
- #00776E
#00776E
oklch(51.2% 0.09 185.7)
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 #B42557, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raspberry #B00149 ΔE 0.032
- Rose Red #BE013C ΔE 0.041
- Light Burgundy #A8415B ΔE 0.044
- Rouge #AB1239 ΔE 0.047
- Ruby #CA0147 ΔE 0.047
- Violet Red #A50055 ΔE 0.050
- Lipstick Red #C0022F ΔE 0.055
- Dark Rose #B5485D ΔE 0.057
Use #B42557 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.