#B4274B
Closest named color: Rose Red (#BE013C). oklch(51.1% 0.176 11.9), rgb(180, 39, 75).
Aa
White text reads best on this color (6.30:1).
About this color
#B4274B is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.176 and its hue 12°. Its hue sits on the warm side of the wheel. The nearest named color is Rose Red (#BE013C), ΔE 0.030 away. White text reads best on it, at 6.30:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.176) |
| Temperature | warm |
| Nearest name | Rose Red (#BE013C) |
| Black text | 3.33:1 |
| White text | 6.30:1 |
Values
| HEX | #B4274B |
| RGB | rgb(180, 39, 75) |
| HSL | hsl(345, 64%, 43%) |
| OKLCH | oklch(51.1% 0.176 11.9) |
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 #B4274B | 6.30:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #B4274B | 3.33:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #B4274B text on white | 6.30:1 | AA | Lc 79.9 | Fine for body text |
| #B4274B text on black | 3.33:1 | AA large text | Lc -21.9 | 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
#FDF2F3
oklch(97% 0.012 11)
-
Step 100
100
#FAE4E5
oklch(93.7% 0.024 14.4)
-
Step 200
200
#F7CDD1
oklch(88.5% 0.048 11.6)
-
Step 300
300
#F2AAB2
oklch(80.9% 0.085 11.8)
-
Step 400
400
#E87A8A
oklch(70.7% 0.136 12)
-
Step 500
500
#DD526D
oklch(63% 0.174 11.9)
-
Step 600
600
#C92F55
oklch(55.7% 0.189 12.1)
-
Step 700
700 (this color)
#B4274B
oklch(51.1% 0.176 11.9)
-
Step 800
800
#8C1D39
oklch(42.6% 0.146 11.9)
-
Step 900
900
#712031
oklch(37.7% 0.114 12.1)
-
Step 950
950
#43141D
oklch(27% 0.073 11.8)
#B4274B 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) | #4E4D4B | 0.197 |
| Deuteranopia (no green cones) | #726A47 | 0.180 |
| Tritanopia (no blue cones) | #C50037 | 0.041 |
| Achromatopsia (no color) | #606060 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4274B
#B4274B
oklch(51.1% 0.176 11.9)
- #007673
#007673
oklch(51.1% 0.088 191.7)
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 #B4274B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rose Red #BE013C ΔE 0.030
- Raspberry #B00149 ΔE 0.033
- Rouge #AB1239 ΔE 0.036
- Lipstick Red #C0022F ΔE 0.040
- Light Burgundy #A8415B ΔE 0.043
- Ruby #CA0147 ΔE 0.044
- Firebrick #B22222 ΔE 0.048
- Dull Red #BB3F3F ΔE 0.051
Use #B4274B 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.