#B40051
Closest named color: Raspberry (#B00149). oklch(49.5% 0.199 5.7), rgb(180, 0, 81).
Aa
White text reads best on this color (6.86:1).
About this color
#B40051 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.199 and its hue 6°. Its hue sits on the warm side of the wheel. The nearest named color is Raspberry (#B00149), ΔE 0.014 away. White text reads best on it, at 6.86:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.199) |
| Temperature | warm |
| Nearest name | Raspberry (#B00149) |
| Black text | 3.05:1 |
| White text | 6.86:1 |
Values
| HEX | #B40051 |
| RGB | rgb(180, 0, 81) |
| HSL | hsl(333, 100%, 35%) |
| OKLCH | oklch(49.5% 0.199 5.7) |
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 #B40051 | 6.86:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #B40051 | 3.05:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #B40051 text on white | 6.86:1 | AA | Lc 81.2 | Fine for body text |
| #B40051 text on black | 3.05:1 | AA large text | Lc -20.7 | 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
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FBE3E7
oklch(93.6% 0.027 6.2)
-
Step 200
200
#F9CBD4
oklch(88.4% 0.053 5.1)
-
Step 300
300
#F6A7B7
oklch(80.9% 0.095 6.1)
-
Step 400
400
#EE7392
oklch(70.7% 0.154 5.9)
-
Step 500
500
#E44678
oklch(63.1% 0.196 5.6)
-
Step 600
600
#CF1661
oklch(55.6% 0.214 5.5)
-
Step 700
700 (this color)
#B40051
oklch(49.5% 0.199 5.7)
-
Step 800
800
#910B42
oklch(42.7% 0.165 5.4)
-
Step 900
900
#751837
oklch(37.8% 0.128 6.2)
-
Step 950
950
#451021
oklch(27% 0.082 5)
#B40051 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) | #414652 | 0.226 |
| Deuteranopia (no green cones) | #6C664D | 0.203 |
| Tritanopia (no blue cones) | #C5002E | 0.062 |
| Achromatopsia (no color) | #5A5A5A | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B40051
#B40051
oklch(49.5% 0.199 5.7)
- #007169
#007169
oklch(49.4% 0.086 186.3)
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 #B40051, closest first.
No curated palette has a color within ΔE 0.04 of #B40051.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raspberry #B00149 ΔE 0.014
- Violet Red #A50055 ΔE 0.034
- Rose Red #BE013C ΔE 0.039
- Rouge #AB1239 ΔE 0.041
- Deep Magenta #A0025C ΔE 0.049
- Ruby #CA0147 ΔE 0.051
- Dark Fuchsia #9D0759 ΔE 0.052
- Lipstick Red #C0022F ΔE 0.055
Use #B40051 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.