#C42431
Closest named color: Lipstick Red (#C0022F). oklch(53.3% 0.194 23.4), rgb(196, 36, 49).
Aa
White text reads best on this color (5.76:1).
About this color
#C42431 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.194 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.026 away. White text reads best on it, at 5.76:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.194) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.64:1 |
| White text | 5.76:1 |
Values
| HEX | #C42431 |
| RGB | rgb(196, 36, 49) |
| HSL | hsl(355, 69%, 45%) |
| OKLCH | oklch(53.3% 0.194 23.4) |
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 #C42431 | 5.76:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #C42431 | 3.64:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #C42431 text on white | 5.76:1 | AA | Lc 77.1 | Fine for body text |
| #C42431 text on black | 3.64:1 | AA large text | Lc -24.7 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FBE4E2
oklch(93.7% 0.025 23.6)
-
Step 200
200
#F8CDCA
oklch(88.4% 0.049 22.8)
-
Step 300
300
#F4ABA6
oklch(81% 0.087 23.5)
-
Step 400
400
#EB7A76
oklch(70.7% 0.14 23.4)
-
Step 500
500
#E15253
oklch(63.1% 0.179 23.4)
-
Step 600
600 (this color)
#C42431
oklch(53.3% 0.194 23.4)
-
Step 700
700
#B01D2A
oklch(49.1% 0.18 23.3)
-
Step 800
800
#8F1D24
oklch(42.7% 0.149 23.4)
-
Step 900
900
#732022
oklch(37.7% 0.116 23.4)
-
Step 950
950
#441414
oklch(27% 0.074 23.5)
#C42431 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) | #575030 | 0.213 |
| Deuteranopia (no green cones) | #7F722B | 0.193 |
| Tritanopia (no blue cones) | #D8002B | 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°).
- #C42431
#C42431
oklch(53.3% 0.194 23.4)
- #007C84
#007C84
oklch(53.4% 0.091 202.7)
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 #C42431, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.026
- Cherry #CF0234 ΔE 0.026
- Scarlet #BE0119 ΔE 0.032
- Dull Red #BB3F3F ΔE 0.036
- Rose Red #BE013C ΔE 0.036
- Ruby #CA0147 ΔE 0.040
- Firebrick #B22222 ΔE 0.041
- Crimson #DC143C ΔE 0.049
Use #C42431 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.