#B4307B
Closest named color: Medium Violet Red (#C71585). oklch(53.4% 0.182 350.2), rgb(180, 48, 123).
Aa
White text reads best on this color (5.75:1).
About this color
#B4307B is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.182 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.044 away. White text reads best on it, at 5.75:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.182) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 3.64:1 |
| White text | 5.75:1 |
Values
| HEX | #B4307B |
| RGB | rgb(180, 48, 123) |
| HSL | hsl(326, 58%, 45%) |
| OKLCH | oklch(53.4% 0.182 350.2) |
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 #B4307B | 5.75:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #B4307B | 3.64:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #B4307B text on white | 5.75:1 | AA | Lc 77.6 | Fine for body text |
| #B4307B text on black | 3.64:1 | AA large text | Lc -24.1 | 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
#FCF3F6
oklch(97.2% 0.01 354.9)
-
Step 100
100
#F7E4EC
oklch(93.6% 0.023 350.1)
-
Step 200
200
#F2CDDD
oklch(88.4% 0.046 350.2)
-
Step 300
300
#EAABC8
oklch(80.8% 0.082 349.9)
-
Step 400
400
#DD7CAC
oklch(70.7% 0.132 350)
-
Step 500
500
#D15797
oklch(63.1% 0.168 350.4)
-
Step 600
600 (this color)
#B4307B
oklch(53.4% 0.182 350.2)
-
Step 700
700
#A1296E
oklch(49.1% 0.169 349.9)
-
Step 800
800
#832459
oklch(42.7% 0.14 350.4)
-
Step 900
900
#6A2449
oklch(37.8% 0.109 350.8)
-
Step 950
950
#3E162B
oklch(27% 0.069 350)
#B4307B 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) | #45577D | 0.204 |
| Deuteranopia (no green cones) | #6B6E78 | 0.179 |
| Tritanopia (no blue cones) | #C12851 | 0.068 |
| Achromatopsia (no color) | #666666 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4307B
#B4307B
oklch(53.4% 0.182 350.2)
- #008064
#008064
oklch(53.4% 0.105 170.5)
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 #B4307B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.044
- Light Burgundy #A8415B ΔE 0.067
- Dark Pink #CB416B ΔE 0.069
- Red Violet #9E0168 ΔE 0.073
- Dark Rose #B5485D ΔE 0.073
- Violet Red #A50055 ΔE 0.074
- Warm Purple #952E8F ΔE 0.075
- Deep Rose #C74767 ΔE 0.075
Use #B4307B 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.