#B4237D
Closest named color: Medium Violet Red (#C71585). oklch(52.5% 0.196 348.4), rgb(180, 35, 125).
Aa
White text reads best on this color (6.03:1).
About this color
#B4237D is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.196 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.039 away. White text reads best on it, at 6.03:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.196) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 3.47:1 |
| White text | 6.03:1 |
Values
| HEX | #B4237D |
| RGB | rgb(180, 35, 125) |
| HSL | hsl(323, 67%, 42%) |
| OKLCH | oklch(52.5% 0.196 348.4) |
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 #B4237D | 6.03:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #B4237D | 3.47:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #B4237D text on white | 6.03:1 | AA | Lc 78.7 | Fine for body text |
| #B4237D text on black | 3.47:1 | AA large text | Lc -23.1 | 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 600.
-
Step 50
50
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F8E3ED
oklch(93.6% 0.026 347.1)
-
Step 200
200
#F3CDDF
oklch(88.6% 0.049 347.9)
-
Step 300
300
#ECAACA
oklch(80.9% 0.087 348.6)
-
Step 400
400
#E079AF
oklch(70.7% 0.142 348.6)
-
Step 500
500
#D4529C
oklch(63.1% 0.181 348.3)
-
Step 600
600 (this color)
#B4237D
oklch(52.5% 0.196 348.4)
-
Step 700
700
#A42072
oklch(49.1% 0.183 348.2)
-
Step 800
800
#851E5D
oklch(42.6% 0.151 348)
-
Step 900
900
#6C204C
oklch(37.8% 0.118 348.5)
-
Step 950
950
#3F142D
oklch(26.9% 0.075 347.3)
#B4237D 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) | #3C537F | 0.221 |
| Deuteranopia (no green cones) | #676C7A | 0.193 |
| Tritanopia (no blue cones) | #C11A4E | 0.077 |
| Achromatopsia (no color) | #636363 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4237D
#B4237D
oklch(52.5% 0.196 348.4)
- #007D5F
#007D5F
oklch(52.4% 0.105 168.6)
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 #B4237D, closest first.
No curated palette has a color within ΔE 0.04 of #B4237D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.039
- Red Violet #9E0168 ΔE 0.063
- Deep Magenta #A0025C ΔE 0.069
- Warm Purple #952E8F ΔE 0.069
- Violet Red #A50055 ΔE 0.070
- Dark Fuchsia #9D0759 ΔE 0.075
- Raspberry #B00149 ΔE 0.078
- Light Burgundy #A8415B ΔE 0.081
Use #B4237D 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.