#C10B27
Closest named color: Lipstick Red (#C0022F). oklch(51.5% 0.204 23.5), rgb(193, 11, 39).
Aa
White text reads best on this color (6.27:1).
About this color
#C10B27 is a medium-dark, vivid red. In OKLCH its lightness is 51%, 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 0.011 away. White text reads best on it, at 6.27:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.204) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.34:1 |
| White text | 6.27:1 |
Values
| HEX | #C10B27 |
| RGB | rgb(193, 11, 39) |
| HSL | hsl(351, 89%, 40%) |
| OKLCH | oklch(51.5% 0.204 23.5) |
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 #C10B27 | 6.27:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #C10B27 | 3.34:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #C10B27 text on white | 6.27:1 | AA | Lc 78.9 | Fine for body text |
| #C10B27 text on black | 3.34:1 | AA large text | Lc -22.9 | 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
#FAA7A2
oklch(80.8% 0.099 23.3)
-
Step 400
400
#F37470
oklch(70.8% 0.157 23.7)
-
Step 500
500
#EA454A
oklch(63% 0.201 23.5)
-
Step 600
600
#D6102D
oklch(55.7% 0.219 23.5)
-
Step 700
700 (this color)
#C10B27
oklch(51.5% 0.204 23.5)
-
Step 800
800
#96071C
oklch(42.7% 0.169 23.5)
-
Step 900
900
#78171D
oklch(37.7% 0.131 23.3)
-
Step 950
950
#471011
oklch(27% 0.084 23.8)
#C10B27 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) | #504826 | 0.226 |
| Deuteranopia (no green cones) | #7A6D1F | 0.204 |
| Tritanopia (no blue cones) | #D5001B | 0.041 |
| Achromatopsia (no color) | #606060 | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C10B27
#C10B27
oklch(51.5% 0.204 23.5)
- #00767E
#00767E
oklch(51.6% 0.088 203.1)
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 #C10B27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.011
- Scarlet #BE0119 ΔE 0.013
- Rose Red #BE013C ΔE 0.027
- Cherry #CF0234 ΔE 0.031
- Firebrick #B22222 ΔE 0.032
- Ruby #CA0147 ΔE 0.042
- Rufous #AE2012 ΔE 0.044
- Rouge #AB1239 ΔE 0.050
Use #C10B27 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.