#C3243B
Closest named color: Lipstick Red (#C0022F). oklch(53.3% 0.192 19.9), rgb(195, 36, 59).
Aa
White text reads best on this color (5.77:1).
About this color
#C3243B is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.192 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.025 away. White text reads best on it, at 5.77:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.192) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.63:1 |
| White text | 5.77:1 |
Values
| HEX | #C3243B |
| RGB | rgb(195, 36, 59) |
| HSL | hsl(351, 69%, 45%) |
| OKLCH | oklch(53.3% 0.192 19.9) |
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 #C3243B | 5.77:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #C3243B | 3.63:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #C3243B text on white | 5.77:1 | AA | Lc 77.2 | Fine for body text |
| #C3243B text on black | 3.63:1 | AA large text | Lc -24.6 | 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
#FAE4E3
oklch(93.6% 0.024 20.7)
-
Step 200
200
#F8CDCC
oklch(88.5% 0.049 19.7)
-
Step 300
300
#F4AAAA
oklch(80.9% 0.088 19.1)
-
Step 400
400
#EA7A7C
oklch(70.7% 0.138 20.1)
-
Step 500
500
#E0525B
oklch(63.1% 0.177 20.1)
-
Step 600
600 (this color)
#C3243B
oklch(53.3% 0.192 19.9)
-
Step 700
700
#AF1E33
oklch(49.1% 0.178 20.1)
-
Step 800
800
#8E1D2B
oklch(42.7% 0.147 20)
-
Step 900
900
#722027
oklch(37.6% 0.115 19.9)
-
Step 950
950
#431417
oklch(26.9% 0.073 19.7)
#C3243B 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) | #56503B | 0.212 |
| Deuteranopia (no green cones) | #7D7236 | 0.195 |
| Tritanopia (no blue cones) | #D7002F | 0.040 |
| Achromatopsia (no color) | #666666 | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C3243B
#C3243B
oklch(53.3% 0.192 19.9)
- #007C81
#007C81
oklch(53.3% 0.091 199.8)
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 #C3243B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.025
- Cherry #CF0234 ΔE 0.026
- Rose Red #BE013C ΔE 0.030
- Ruby #CA0147 ΔE 0.031
- Dull Red #BB3F3F ΔE 0.036
- Scarlet #BE0119 ΔE 0.037
- Lipstick #D5174E ΔE 0.044
- Firebrick #B22222 ΔE 0.044
Use #C3243B 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.