#C51566
Closest named color: Dark Hot Pink (#D90166). oklch(53.9% 0.208 1.5), rgb(197, 21, 102).
Aa
White text reads best on this color (5.71:1).
About this color
#C51566 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.208 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Hot Pink (#D90166), ΔE 0.039 away. White text reads best on it, at 5.71:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.208) |
| Temperature | warm |
| Nearest name | Dark Hot Pink (#D90166) |
| Black text | 3.67:1 |
| White text | 5.71:1 |
Values
| HEX | #C51566 |
| RGB | rgb(197, 21, 102) |
| HSL | hsl(332, 81%, 43%) |
| OKLCH | oklch(53.9% 0.208 1.5) |
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 #C51566 | 5.71:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #C51566 | 3.67:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #C51566 text on white | 5.71:1 | AA | Lc 76.6 | Fine for body text |
| #C51566 text on black | 3.67:1 | AA large text | Lc -25.2 | 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FBE3E8
oklch(93.7% 0.027 3.4)
-
Step 200
200
#F8CBD7
oklch(88.4% 0.053 0.4)
-
Step 300
300
#F4A7BC
oklch(80.8% 0.094 1.6)
-
Step 400
400
#EA759A
oklch(70.7% 0.149 1.6)
-
Step 500
500
#E04981
oklch(63% 0.192 1.6)
-
Step 600
600 (this color)
#C51566
oklch(53.9% 0.208 1.5)
-
Step 700
700
#AF0A59
oklch(49% 0.194 1.5)
-
Step 800
800
#8E1249
oklch(42.6% 0.16 1.4)
-
Step 900
900
#721A3D
oklch(37.6% 0.125 1.3)
-
Step 950
950
#431124
oklch(26.9% 0.079 0.6)
#C51566 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) | #485168 | 0.237 |
| Deuteranopia (no green cones) | #767262 | 0.212 |
| Tritanopia (no blue cones) | #D7003E | 0.067 |
| Achromatopsia (no color) | #666666 | 0.210 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C51566
#C51566
oklch(53.9% 0.208 1.5)
- #008072
#008072
oklch(53.8% 0.097 181.7)
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 #C51566, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Hot Pink #D90166 ΔE 0.039
- Ruby #CA0147 ΔE 0.045
- Medium Violet Red #C71585 ΔE 0.048
- Cerise #DE0C62 ΔE 0.051
- Lipstick #D5174E ΔE 0.052
- Dark Pink #CB416B ΔE 0.056
- Rose Red #BE013C ΔE 0.060
- Raspberry #B00149 ΔE 0.060
Use #C51566 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.