#B21763
Closest named color: Violet Red (#A50055). oklch(50.4% 0.193 358.5), rgb(178, 23, 99).
Aa
White text reads best on this color (6.57:1).
About this color
#B21763 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.193 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Violet Red (#A50055), ΔE 0.038 away. White text reads best on it, at 6.57:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.193) |
| Temperature | warm |
| Nearest name | Violet Red (#A50055) |
| Black text | 3.19:1 |
| White text | 6.57:1 |
Values
| HEX | #B21763 |
| RGB | rgb(178, 23, 99) |
| HSL | hsl(331, 77%, 39%) |
| OKLCH | oklch(50.4% 0.193 358.5) |
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 #B21763 | 6.57:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #B21763 | 3.19:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #B21763 text on white | 6.57:1 | AA | Lc 80.7 | Fine for body text |
| #B21763 text on black | 3.19:1 | AA large text | Lc -21.1 | 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 700.
-
Step 50
50
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FAE3E9
oklch(93.6% 0.026 359.9)
-
Step 200
200
#F7CCD9
oklch(88.6% 0.051 358.1)
-
Step 300
300
#F3A8C0
oklch(81% 0.093 358.6)
-
Step 400
400
#E9759F
oklch(70.7% 0.15 358.7)
-
Step 500
500
#DE4A88
oklch(63.1% 0.191 358.4)
-
Step 600
600
#C92272
oklch(55.6% 0.207 358.3)
-
Step 700
700 (this color)
#B21763
oklch(50.4% 0.193 358.5)
-
Step 800
800
#8D144E
oklch(42.7% 0.16 358.4)
-
Step 900
900
#711B41
oklch(37.7% 0.124 358.1)
-
Step 950
950
#431226
oklch(27.1% 0.079 358.5)
#B21763 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 | 0.219 |
| Deuteranopia (no green cones) | #696760 | 0.194 |
| Tritanopia (no blue cones) | #C1003D | 0.063 |
| Achromatopsia (no color) | #5D5D5D | 0.194 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B21763
#B21763
oklch(50.4% 0.193 358.5)
- #007565
#007565
oklch(50.3% 0.092 178.8)
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 #B21763, closest first.
No curated palette has a color within ΔE 0.04 of #B21763.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Violet Red #A50055 ΔE 0.038
- Raspberry #B00149 ΔE 0.038
- Deep Magenta #A0025C ΔE 0.044
- Dark Fuchsia #9D0759 ΔE 0.050
- Red Violet #9E0168 ΔE 0.052
- Rose Red #BE013C ΔE 0.061
- Rouge #AB1239 ΔE 0.063
- Berry #990F4B ΔE 0.063
Use #B21763 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.