#B51379
Closest named color: Medium Violet Red (#C71585). oklch(51.6% 0.206 349.5), rgb(181, 19, 121).
Aa
White text reads best on this color (6.29:1).
About this color
#B51379 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.206 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.040 away. White text reads best on it, at 6.29:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.206) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 3.33:1 |
| White text | 6.29:1 |
Values
| HEX | #B51379 |
| RGB | rgb(181, 19, 121) |
| HSL | hsl(322, 81%, 39%) |
| OKLCH | oklch(51.6% 0.206 349.5) |
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 #B51379 | 6.29:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #B51379 | 3.33:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #B51379 text on white | 6.29:1 | AA | Lc 79.4 | Fine for body text |
| #B51379 text on black | 3.33:1 | AA large text | Lc -22.4 | 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
#FAE2ED
oklch(93.5% 0.03 348.2)
-
Step 200
200
#F7CBDF
oklch(88.6% 0.056 349.2)
-
Step 300
300
#F2A6CA
oklch(80.9% 0.1 349.6)
-
Step 400
400
#E872AF
oklch(70.7% 0.161 349.7)
-
Step 500
500
#DD469B
oklch(63.2% 0.203 349.8)
-
Step 600
600
#C81786
oklch(55.6% 0.222 349.6)
-
Step 700
700 (this color)
#B51379
oklch(51.6% 0.206 349.5)
-
Step 800
800
#8C0C5D
oklch(42.8% 0.171 349.3)
-
Step 900
900
#71184C
oklch(37.8% 0.133 349.7)
-
Step 950
950
#42102C
oklch(26.9% 0.084 349.7)
#B51379 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) | #374E7B | 0.235 |
| Deuteranopia (no green cones) | #666A76 | 0.203 |
| Tritanopia (no blue cones) | #C30048 | 0.081 |
| Achromatopsia (no color) | #606060 | 0.208 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B51379
#B51379
oklch(51.6% 0.206 349.5)
- #007A5E
#007A5E
oklch(51.5% 0.102 169.6)
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 #B51379, closest first.
No curated palette has a color within ΔE 0.04 of #B51379.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.040
- Red Violet #9E0168 ΔE 0.056
- Deep Magenta #A0025C ΔE 0.062
- Violet Red #A50055 ΔE 0.064
- Dark Fuchsia #9D0759 ΔE 0.069
- Raspberry #B00149 ΔE 0.073
- Warm Purple #952E8F ΔE 0.074
- Dark Hot Pink #D90166 ΔE 0.082
Use #B51379 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.