#C42442
Closest named color: Ruby (#CA0147). oklch(53.6% 0.193 17.4), rgb(196, 36, 66).
Aa
White text reads best on this color (5.70:1).
About this color
#C42442 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.193 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Ruby (#CA0147), ΔE 0.025 away. White text reads best on it, at 5.70:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.193) |
| Temperature | warm |
| Nearest name | Ruby (#CA0147) |
| Black text | 3.67:1 |
| White text | 5.70:1 |
Values
| HEX | #C42442 |
| RGB | rgb(196, 36, 66) |
| HSL | hsl(349, 69%, 45%) |
| OKLCH | oklch(53.6% 0.193 17.4) |
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 #C42442 | 5.70:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #C42442 | 3.67:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #C42442 text on white | 5.70:1 | AA | Lc 76.9 | Fine for body text |
| #C42442 text on black | 3.67:1 | AA large text | Lc -24.9 | 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
#FDF2F2
oklch(97% 0.012 17.4)
-
Step 100
100
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F8CDCD
oklch(88.5% 0.049 18.1)
-
Step 300
300
#F4AAAC
oklch(80.9% 0.087 17.4)
-
Step 400
400
#EA7A80
oklch(70.8% 0.138 17.9)
-
Step 500
500
#E05161
oklch(63.1% 0.178 17.3)
-
Step 600
600 (this color)
#C42442
oklch(53.6% 0.193 17.4)
-
Step 700
700
#AF1C39
oklch(49% 0.179 17.4)
-
Step 800
800
#8E1C2F
oklch(42.6% 0.148 17.6)
-
Step 900
900
#721F2A
oklch(37.6% 0.116 17.3)
-
Step 950
950
#431419
oklch(26.9% 0.073 17.1)
#C42442 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) | #555142 | 0.215 |
| Deuteranopia (no green cones) | #7D723D | 0.195 |
| Tritanopia (no blue cones) | #D70032 | 0.039 |
| Achromatopsia (no color) | #666666 | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C42442
#C42442
oklch(53.6% 0.193 17.4)
- #007D80
#007D80
oklch(53.5% 0.091 197.7)
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 #C42442, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ruby #CA0147 ΔE 0.025
- Cherry #CF0234 ΔE 0.026
- Rose Red #BE013C ΔE 0.029
- Lipstick Red #C0022F ΔE 0.029
- Lipstick #D5174E ΔE 0.037
- Dull Red #BB3F3F ΔE 0.040
- Scarlet #BE0119 ΔE 0.045
- Crimson #DC143C ΔE 0.047
Use #C42442 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.