#B51363
Closest named color: Raspberry (#B00149). oklch(50.8% 0.197 359), rgb(181, 19, 99).
Aa
White text reads best on this color (6.48:1).
About this color
#B51363 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.197 and its hue 359°. Its hue sits on the warm side of the wheel. The nearest named color is Raspberry (#B00149), ΔE 0.039 away. White text reads best on it, at 6.48:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.197) |
| Temperature | warm |
| Nearest name | Raspberry (#B00149) |
| Black text | 3.23:1 |
| White text | 6.48:1 |
Values
| HEX | #B51363 |
| RGB | rgb(181, 19, 99) |
| HSL | hsl(330, 81%, 39%) |
| OKLCH | oklch(50.8% 0.197 359) |
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 #B51363 | 6.48:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #B51363 | 3.23:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #B51363 text on white | 6.48:1 | AA | Lc 80.2 | Fine for body text |
| #B51363 text on black | 3.23:1 | AA large text | Lc -21.6 | 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FBE3E9
oklch(93.7% 0.027 0.7)
-
Step 200
200
#F8CBD8
oklch(88.5% 0.053 359)
-
Step 300
300
#F4A7BF
oklch(80.9% 0.095 359.2)
-
Step 400
400
#EA749E
oklch(70.7% 0.152 359.2)
-
Step 500
500
#E04887
oklch(63.1% 0.195 358.9)
-
Step 600
600
#CB1C71
oklch(55.6% 0.212 358.8)
-
Step 700
700 (this color)
#B51363
oklch(50.8% 0.197 359)
-
Step 800
800
#8E104D
oklch(42.7% 0.163 358.9)
-
Step 900
900
#721940
oklch(37.6% 0.127 358.8)
-
Step 950
950
#431126
oklch(26.9% 0.08 358.1)
#B51363 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) | #404B65 | 0.225 |
| Deuteranopia (no green cones) | #6B6860 | 0.198 |
| Tritanopia (no blue cones) | #C5003C | 0.066 |
| Achromatopsia (no color) | #5E5E5E | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B51363
#B51363
oklch(50.8% 0.197 359)
- #007666
#007666
oklch(50.7% 0.093 178.9)
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 #B51363, closest first.
No curated palette has a color within ΔE 0.04 of #B51363.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raspberry #B00149 ΔE 0.039
- Violet Red #A50055 ΔE 0.042
- Deep Magenta #A0025C ΔE 0.049
- Dark Fuchsia #9D0759 ΔE 0.055
- Red Violet #9E0168 ΔE 0.056
- Rose Red #BE013C ΔE 0.059
- Ruby #CA0147 ΔE 0.061
- Medium Violet Red #C71585 ΔE 0.062
Use #B51363 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.