#C31433
Closest named color: Lipstick Red (#C0022F). oklch(52.3% 0.201 20.7), rgb(195, 20, 51).
Aa
White text reads best on this color (6.05:1).
About this color
#C31433 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.201 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.012 away. White text reads best on it, at 6.05:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.201) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #C31433 |
| RGB | rgb(195, 20, 51) |
| HSL | hsl(349, 81%, 42%) |
| OKLCH | oklch(52.3% 0.201 20.7) |
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 #C31433 | 6.05:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #C31433 | 3.46:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #C31433 text on white | 6.05:1 | AA | Lc 78.1 | Fine for body text |
| #C31433 text on black | 3.46:1 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FBCCCA
oklch(88.5% 0.054 21.1)
-
Step 300
300
#F9A7A6
oklch(80.8% 0.097 20.2)
-
Step 400
400
#F27476
oklch(70.7% 0.155 20.9)
-
Step 500
500
#E94653
oklch(63.1% 0.199 20.7)
-
Step 600
600
#D51237
oklch(55.7% 0.217 20.8)
-
Step 700
700 (this color)
#C31433
oklch(52.3% 0.201 20.7)
-
Step 800
800
#950924
oklch(42.7% 0.167 20.7)
-
Step 900
900
#781722
oklch(37.8% 0.131 20.5)
-
Step 950
950
#471014
oklch(27% 0.083 20.8)
#C31433 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) | #524B32 | 0.223 |
| Deuteranopia (no green cones) | #7B6F2D | 0.203 |
| Tritanopia (no blue cones) | #D70024 | 0.041 |
| Achromatopsia (no color) | #626262 | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C31433
#C31433
oklch(52.3% 0.201 20.7)
- #00797F
#00797F
oklch(52.4% 0.089 200.9)
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 #C31433, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.012
- Rose Red #BE013C ΔE 0.022
- Cherry #CF0234 ΔE 0.024
- Scarlet #BE0119 ΔE 0.026
- Ruby #CA0147 ΔE 0.031
- Firebrick #B22222 ΔE 0.040
- Dull Red #BB3F3F ΔE 0.048
- Lipstick #D5174E ΔE 0.049
Use #C31433 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.