#C10366
Closest named color: Medium Violet Red (#C71585). oklch(52.6% 0.212 359.8), rgb(193, 3, 102).
Aa
White text reads best on this color (6.04:1).
About this color
#C10366 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.212 and its hue 360°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.048 away. White text reads best on it, at 6.04:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.212) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 3.47:1 |
| White text | 6.04:1 |
Values
| HEX | #C10366 |
| RGB | rgb(193, 3, 102) |
| HSL | hsl(329, 97%, 38%) |
| OKLCH | oklch(52.6% 0.212 359.8) |
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 #C10366 | 6.04:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #C10366 | 3.47:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #C10366 text on white | 6.04:1 | AA | Lc 77.7 | Fine for body text |
| #C10366 text on black | 3.47:1 | AA large text | Lc -24.0 | 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
#FBE3E9
oklch(93.7% 0.027 0.7)
-
Step 200
200
#F8CBD8
oklch(88.5% 0.053 359)
-
Step 300
300
#F4A7BE
oklch(80.9% 0.095 360)
-
Step 400
400
#EB749D
oklch(70.8% 0.152 359.9)
-
Step 500
500
#E14785
oklch(63.1% 0.196 359.8)
-
Step 600
600 (this color)
#C10366
oklch(52.6% 0.212 359.8)
-
Step 700
700
#B0045C
oklch(49.2% 0.197 0.1)
-
Step 800
800
#8F0F4C
oklch(42.8% 0.164 359.7)
-
Step 900
900
#73193F
oklch(37.8% 0.127 359.9)
-
Step 950
950
#441125
oklch(27.1% 0.081 360)
#C10366 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) | #424D68 | 0.243 |
| Deuteranopia (no green cones) | #716E62 | 0.215 |
| Tritanopia (no blue cones) | #D2003B | 0.073 |
| Achromatopsia (no color) | #636363 | 0.214 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C10366
#C10366
oklch(52.6% 0.212 359.8)
- #007C6D
#007C6D
oklch(52.5% 0.095 180.5)
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 #C10366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.048
- Dark Hot Pink #D90166 ΔE 0.050
- Ruby #CA0147 ΔE 0.051
- Raspberry #B00149 ΔE 0.054
- Rose Red #BE013C ΔE 0.061
- Violet Red #A50055 ΔE 0.063
- Lipstick #D5174E ΔE 0.063
- Cerise #DE0C62 ΔE 0.063
Use #C10366 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.