#C40C3A
Closest named color: Lipstick Red (#C0022F). oklch(52.3% 0.205 17.9), rgb(196, 12, 58).
Aa
White text reads best on this color (6.06:1).
About this color
#C40C3A is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.205 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.015 away. White text reads best on it, at 6.06:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.205) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.46:1 |
| White text | 6.06:1 |
Values
| HEX | #C40C3A |
| RGB | rgb(196, 12, 58) |
| HSL | hsl(345, 88%, 41%) |
| OKLCH | oklch(52.3% 0.205 17.9) |
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 #C40C3A | 6.06:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #C40C3A | 3.46:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #C40C3A text on white | 6.06:1 | AA | Lc 78.0 | Fine for body text |
| #C40C3A text on black | 3.46:1 | AA large text | Lc -23.8 | 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
#FDE3E3
oklch(93.7% 0.029 17.7)
-
Step 200
200
#FCCBCB
oklch(88.5% 0.056 18.3)
-
Step 300
300
#FAA7A8
oklch(81% 0.098 18.7)
-
Step 400
400
#F3727B
oklch(70.7% 0.159 17.8)
-
Step 500
500
#EA4359
oklch(63.1% 0.202 18)
-
Step 600
600
#D5073F
oklch(55.5% 0.22 17.9)
-
Step 700
700 (this color)
#C40C3A
oklch(52.3% 0.205 17.9)
-
Step 800
800
#960229
oklch(42.7% 0.17 18)
-
Step 900
900
#781526
oklch(37.7% 0.132 17.6)
-
Step 950
950
#470F16
oklch(27% 0.084 18)
#C40C3A 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) | #504B3A | 0.228 |
| Deuteranopia (no green cones) | #7A6F34 | 0.209 |
| Tritanopia (no blue cones) | #D80024 | 0.046 |
| Achromatopsia (no color) | #626262 | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C40C3A
#C40C3A
oklch(52.3% 0.205 17.9)
- #00797C
#00797C
oklch(52.3% 0.089 197.8)
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 #C40C3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.015
- Rose Red #BE013C ΔE 0.016
- Ruby #CA0147 ΔE 0.021
- Cherry #CF0234 ΔE 0.023
- Scarlet #BE0119 ΔE 0.034
- Lipstick #D5174E ΔE 0.043
- Firebrick #B22222 ΔE 0.047
- Crimson #DC143C ΔE 0.051
Use #C40C3A 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.