#C01C37
Closest named color: Lipstick Red (#C0022F). oklch(52.2% 0.195 20), rgb(192, 28, 55).
Aa
White text reads best on this color (6.06:1).
About this color
#C01C37 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.195 and its hue 20°. 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 (0.195) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.46:1 |
| White text | 6.06:1 |
Values
| HEX | #C01C37 |
| RGB | rgb(192, 28, 55) |
| HSL | hsl(350, 75%, 43%) |
| OKLCH | oklch(52.2% 0.195 20) |
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 #C01C37 | 6.06:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #C01C37 | 3.46:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #C01C37 text on white | 6.06:1 | AA | Lc 78.4 | Fine for body text |
| #C01C37 text on black | 3.46:1 | AA large text | Lc -23.4 | 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
#FACCCB
oklch(88.5% 0.052 19.6)
-
Step 300
300
#F8A8A7
oklch(80.9% 0.095 20.1)
-
Step 400
400
#F07679
oklch(70.8% 0.15 20.1)
-
Step 500
500
#E64A57
oklch(63.1% 0.192 20)
-
Step 600
600
#D21D3C
oklch(55.6% 0.21 20)
-
Step 700
700 (this color)
#C01C37
oklch(52.2% 0.195 20)
-
Step 800
800
#931127
oklch(42.7% 0.161 20.1)
-
Step 900
900
#761A24
oklch(37.7% 0.126 20)
-
Step 950
950
#461216
oklch(27.1% 0.079 19.8)
#C01C37 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) | #524D37 | 0.216 |
| Deuteranopia (no green cones) | #7A6E31 | 0.196 |
| Tritanopia (no blue cones) | #D30029 | 0.038 |
| Achromatopsia (no color) | #626262 | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C01C37
#C01C37
oklch(52.2% 0.195 20)
- #00787E
#00787E
oklch(52.1% 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 #C01C37, 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 0.021
- Scarlet #BE0119 ΔE 0.029
- Cherry #CF0234 ΔE 0.029
- Ruby #CA0147 ΔE 0.032
- Firebrick #B22222 ΔE 0.037
- Dull Red #BB3F3F ΔE 0.043
- Rouge #AB1239 ΔE 0.048
Use #C01C37 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.