#C63B71
Closest named color: Dark Pink (#CB416B). oklch(57% 0.18 1), rgb(198, 59, 113).
Aa
White text reads best on this color (4.92:1).
About this color
#C63B71 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.180 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Pink (#CB416B), ΔE 0.020 away. White text reads best on it, at 4.92:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.180) |
| Temperature | warm |
| Nearest name | Dark Pink (#CB416B) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #C63B71 |
| RGB | rgb(198, 59, 113) |
| HSL | hsl(337, 55%, 50%) |
| OKLCH | oklch(57% 0.18 1) |
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 #C63B71 | 4.92:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #C63B71 | 4.26:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #C63B71 text on white | 4.92:1 | AA | Lc 73.0 | Content text, not long reading |
| #C63B71 text on black | 4.26:1 | AA large text | Lc -28.7 | 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
#F4CDD7
oklch(88.4% 0.046 0.9)
-
Step 300
300
#EDABBD
oklch(80.8% 0.08 1.1)
-
Step 400
400
#E17C9C
oklch(70.6% 0.129 0.7)
-
Step 500
500
#D65683
oklch(63.1% 0.166 1.2)
-
Step 600
600 (this color)
#C63B71
oklch(57% 0.18 1)
-
Step 700
700
#A6275B
oklch(49.1% 0.167 1)
-
Step 800
800
#87234A
oklch(42.7% 0.138 1.3)
-
Step 900
900
#6D233E
oklch(37.8% 0.108 1.2)
-
Step 950
950
#401624
oklch(27% 0.067 1.8)
#C63B71 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) | #585F72 | 0.202 |
| Deuteranopia (no green cones) | #7E7A6E | 0.181 |
| Tritanopia (no blue cones) | #D72851 | 0.053 |
| Achromatopsia (no color) | #707070 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C63B71
#C63B71
oklch(57% 0.18 1)
- #008B7B
#008B7B
oklch(57.1% 0.103 181)
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 #C63B71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Pink #CB416B ΔE 0.020
- Deep Rose #C74767 ΔE 0.030
- Dark Hot Pink #D90166 ΔE 0.050
- Dark Rose #B5485D ΔE 0.051
- Cerise #DE0C62 ΔE 0.054
- Lipstick #D5174E ΔE 0.056
- Medium Violet Red #C71585 ΔE 0.060
- Ruby #CA0147 ΔE 0.065
Use #C63B71 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.