#C4102B
Closest named color: Lipstick Red (#C0022F). oklch(52.2% 0.204 22.9), rgb(196, 16, 43).
Aa
White text reads best on this color (6.07:1).
About this color
#C4102B is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.204 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.014 away. White text reads best on it, at 6.07:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.204) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.45:1 |
| White text | 6.07:1 |
Values
| HEX | #C4102B |
| RGB | rgb(196, 16, 43) |
| HSL | hsl(351, 85%, 42%) |
| OKLCH | oklch(52.2% 0.204 22.9) |
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 #C4102B | 6.07:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #C4102B | 3.45:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #C4102B text on white | 6.07:1 | AA | Lc 78.1 | Fine for body text |
| #C4102B text on black | 3.45:1 | AA large text | Lc -23.7 | 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 700.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E1
oklch(93.6% 0.029 23)
-
Step 200
200
#FCCCC8
oklch(88.6% 0.055 23.8)
-
Step 300
300
#FAA7A3
oklch(80.8% 0.099 22.5)
-
Step 400
400
#F37371
oklch(70.6% 0.158 22.8)
-
Step 500
500
#EA454C
oklch(63.1% 0.201 22.9)
-
Step 600
600
#D60E2F
oklch(55.6% 0.22 22.8)
-
Step 700
700 (this color)
#C4102B
oklch(52.2% 0.204 22.9)
-
Step 800
800
#96061D
oklch(42.7% 0.169 23.1)
-
Step 900
900
#78161E
oklch(37.6% 0.132 22.5)
-
Step 950
950
#471012
oklch(27% 0.084 22.8)
#C4102B 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) | #524B2A | 0.226 |
| Deuteranopia (no green cones) | #7C6F23 | 0.205 |
| Tritanopia (no blue cones) | #D8001F | 0.041 |
| Achromatopsia (no color) | #626262 | 0.206 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4102B
#C4102B
oklch(52.2% 0.204 22.9)
- #007880
#007880
oklch(52.2% 0.089 203)
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 #C4102B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.014
- Scarlet #BE0119 ΔE 0.021
- Cherry #CF0234 ΔE 0.024
- Rose Red #BE013C ΔE 0.028
- Ruby #CA0147 ΔE 0.037
- Firebrick #B22222 ΔE 0.038
- Dull Red #BB3F3F ΔE 0.050
- Rufous #AE2012 ΔE 0.050
Use #C4102B 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.