#B51574
Closest named color: Medium Violet Red (#C71585). oklch(51.5% 0.203 351.7), rgb(181, 21, 116).
Aa
White text reads best on this color (6.31:1).
About this color
#B51574 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.203 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.043 away. White text reads best on it, at 6.31:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.203) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 3.32:1 |
| White text | 6.31:1 |
Values
| HEX | #B51574 |
| RGB | rgb(181, 21, 116) |
| HSL | hsl(324, 79%, 40%) |
| OKLCH | oklch(51.5% 0.203 351.7) |
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 #B51574 | 6.31:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #B51574 | 3.32:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #B51574 text on white | 6.31:1 | AA | Lc 79.6 | Fine for body text |
| #B51574 text on black | 3.32:1 | AA large text | Lc -22.3 | 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
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#FAE3EC
oklch(93.7% 0.028 352)
-
Step 200
200
#F7CBDD
oklch(88.5% 0.055 351.8)
-
Step 300
300
#F2A6C8
oklch(80.8% 0.099 351.1)
-
Step 400
400
#E873AB
oklch(70.7% 0.157 351.9)
-
Step 500
500
#DD4797
oklch(63.1% 0.2 351.5)
-
Step 600
600
#C81A81
oklch(55.6% 0.218 351.6)
-
Step 700
700 (this color)
#B51574
oklch(51.5% 0.203 351.7)
-
Step 800
800
#8C0E59
oklch(42.7% 0.168 351.6)
-
Step 900
900
#711849
oklch(37.7% 0.131 351.7)
-
Step 950
950
#43112B
oklch(27.1% 0.083 351.9)
#B51574 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) | #3A4E76 | 0.231 |
| Deuteranopia (no green cones) | #676A71 | 0.202 |
| Tritanopia (no blue cones) | #C30046 | 0.076 |
| Achromatopsia (no color) | #606060 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B51574
#B51574
oklch(51.5% 0.203 351.7)
- #007A60
#007A60
oklch(51.6% 0.101 171.1)
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 #B51574, closest first.
No curated palette has a color within ΔE 0.04 of #B51574.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.043
- Red Violet #9E0168 ΔE 0.055
- Violet Red #A50055 ΔE 0.058
- Deep Magenta #A0025C ΔE 0.058
- Dark Fuchsia #9D0759 ΔE 0.065
- Raspberry #B00149 ΔE 0.065
- Dark Hot Pink #D90166 ΔE 0.078
- Warm Purple #952E8F ΔE 0.078
Use #B51574 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.