#C0366E
Closest named color: Dark Pink (#CB416B). oklch(55.4% 0.179 0.3), rgb(192, 54, 110).
Aa
White text reads best on this color (5.25:1).
About this color
#C0366E is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.179 and its hue 0°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Pink (#CB416B), ΔE 0.033 away. White text reads best on it, at 5.25:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.179) |
| Temperature | warm |
| Nearest name | Dark Pink (#CB416B) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #C0366E |
| RGB | rgb(192, 54, 110) |
| HSL | hsl(336, 56%, 48%) |
| OKLCH | oklch(55.4% 0.179 0.3) |
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 #C0366E | 5.25:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #C0366E | 3.99:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #C0366E text on white | 5.25:1 | AA | Lc 75.0 | Content text, not long reading |
| #C0366E text on black | 3.99:1 | AA large text | Lc -26.7 | 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
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F8E4E9
oklch(93.6% 0.023 0.5)
-
Step 200
200
#F4CDD8
oklch(88.5% 0.046 359.2)
-
Step 300
300
#EDABBE
oklch(80.9% 0.081 0.2)
-
Step 400
400
#E17C9D
oklch(70.7% 0.13 0.1)
-
Step 500
500
#D55785
oklch(63.1% 0.164 0.2)
-
Step 600
600 (this color)
#C0366E
oklch(55.4% 0.179 0.3)
-
Step 700
700
#A6275C
oklch(49.1% 0.167 0.5)
-
Step 800
800
#87234B
oklch(42.8% 0.139 0.7)
-
Step 900
900
#6C233F
oklch(37.6% 0.107 360)
-
Step 950
950
#401625
oklch(27.1% 0.068 0.3)
#C0366E 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) | #535B6F | 0.202 |
| Deuteranopia (no green cones) | #79766B | 0.182 |
| Tritanopia (no blue cones) | #D0224E | 0.053 |
| Achromatopsia (no color) | #6C6C6C | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C0366E
#C0366E
oklch(55.4% 0.179 0.3)
- #008675
#008675
oklch(55.5% 0.101 179.7)
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 #C0366E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Pink #CB416B ΔE 0.033
- Deep Rose #C74767 ΔE 0.040
- Dark Rose #B5485D ΔE 0.048
- Dark Hot Pink #D90166 ΔE 0.054
- Medium Violet Red #C71585 ΔE 0.056
- Light Burgundy #A8415B ΔE 0.057
- Lipstick #D5174E ΔE 0.059
- Ruby #CA0147 ΔE 0.060
Use #C0366E 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.