#B3237C
Closest named color: Medium Violet Red (#C71585). oklch(52.2% 0.195 348.5), rgb(179, 35, 124).
Aa
White text reads best on this color (6.09:1).
About this color
#B3237C is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.195 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.041 away. White text reads best on it, at 6.09:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.195) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 3.44:1 |
| White text | 6.09:1 |
Values
| HEX | #B3237C |
| RGB | rgb(179, 35, 124) |
| HSL | hsl(323, 67%, 42%) |
| OKLCH | oklch(52.2% 0.195 348.5) |
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 #B3237C | 6.09:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #B3237C | 3.44:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #B3237C text on white | 6.09:1 | AA | Lc 78.9 | Fine for body text |
| #B3237C text on black | 3.44:1 | AA large text | Lc -22.9 | 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
#FDF2F7
oklch(97.1% 0.013 347.9)
-
Step 100
100
#F9E3ED
oklch(93.6% 0.027 348.3)
-
Step 200
200
#F5CCDF
oklch(88.6% 0.052 348.6)
-
Step 300
300
#EFA8CB
oklch(80.9% 0.094 348.4)
-
Step 400
400
#E476B0
oklch(70.8% 0.151 348.8)
-
Step 500
500
#D84C9D
oklch(63.1% 0.193 348.3)
-
Step 600
600
#C32587
oklch(55.5% 0.209 348.6)
-
Step 700
700 (this color)
#B3237C
oklch(52.2% 0.195 348.5)
-
Step 800
800
#89165D
oklch(42.7% 0.162 348.8)
-
Step 900
900
#6E1C4D
oklch(37.7% 0.126 348.1)
-
Step 950
950
#41122D
oklch(27% 0.08 348.3)
#B3237C 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) | #3C527E | 0.219 |
| Deuteranopia (no green cones) | #666B79 | 0.192 |
| Tritanopia (no blue cones) | #C01A4D | 0.077 |
| Achromatopsia (no color) | #626262 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3237C
#B3237C
oklch(52.2% 0.195 348.5)
- #007D5E
#007D5E
oklch(52.4% 0.106 167.9)
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 #B3237C, closest first.
No curated palette has a color within ΔE 0.04 of #B3237C.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.041
- Red Violet #9E0168 ΔE 0.061
- Deep Magenta #A0025C ΔE 0.067
- Violet Red #A50055 ΔE 0.068
- Warm Purple #952E8F ΔE 0.068
- Dark Fuchsia #9D0759 ΔE 0.073
- Raspberry #B00149 ΔE 0.077
- Light Burgundy #A8415B ΔE 0.079
Use #B3237C 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.