#C10C40
Closest named color: Rose Red (#BE013C). oklch(51.9% 0.203 15.4), rgb(193, 12, 64).
Aa
White text reads best on this color (6.18:1).
About this color
#C10C40 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.203 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Rose Red (#BE013C), ΔE 0.010 away. White text reads best on it, at 6.18:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.203) |
| Temperature | warm |
| Nearest name | Rose Red (#BE013C) |
| Black text | 3.39:1 |
| White text | 6.18:1 |
Values
| HEX | #C10C40 |
| RGB | rgb(193, 12, 64) |
| HSL | hsl(343, 88%, 40%) |
| OKLCH | oklch(51.9% 0.203 15.4) |
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 #C10C40 | 6.18:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #C10C40 | 3.39:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #C10C40 text on white | 6.18:1 | AA | Lc 78.6 | Fine for body text |
| #C10C40 text on black | 3.39:1 | AA large text | Lc -23.2 | 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
#FCE3E4
oklch(93.6% 0.028 14.9)
-
Step 200
200
#FBCBCD
oklch(88.4% 0.055 15.4)
-
Step 300
300
#F9A7AC
oklch(81% 0.097 15.4)
-
Step 400
400
#F27280
oklch(70.7% 0.158 15.2)
-
Step 500
500
#E94460
oklch(63.2% 0.2 15.5)
-
Step 600
600
#D40D47
oklch(55.6% 0.218 15.4)
-
Step 700
700 (this color)
#C10C40
oklch(51.9% 0.203 15.4)
-
Step 800
800
#95052F
oklch(42.8% 0.168 15.4)
-
Step 900
900
#77162A
oklch(37.6% 0.13 15.2)
-
Step 950
950
#461019
oklch(27% 0.082 15)
#C10C40 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) | #4D4A40 | 0.228 |
| Deuteranopia (no green cones) | #786D3B | 0.205 |
| Tritanopia (no blue cones) | #D40027 | 0.048 |
| Achromatopsia (no color) | #616161 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C10C40
#C10C40
oklch(51.9% 0.203 15.4)
- #007879
#007879
oklch(51.9% 0.088 195.8)
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 #C10C40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rose Red #BE013C ΔE 0.010
- Lipstick Red #C0022F ΔE 0.020
- Ruby #CA0147 ΔE 0.020
- Cherry #CF0234 ΔE 0.032
- Scarlet #BE0119 ΔE 0.040
- Raspberry #B00149 ΔE 0.042
- Lipstick #D5174E ΔE 0.046
- Rouge #AB1239 ΔE 0.046
Use #C10C40 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.