#C00A28
Closest named color: Lipstick Red (#C0022F). oklch(51.3% 0.203 23.1), rgb(192, 10, 40).
Aa
White text reads best on this color (6.33:1).
About this color
#C00A28 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.203 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.009 away. White text reads best on it, at 6.33:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.203) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.31:1 |
| White text | 6.33:1 |
Values
| HEX | #C00A28 |
| RGB | rgb(192, 10, 40) |
| HSL | hsl(350, 90%, 40%) |
| OKLCH | oklch(51.3% 0.203 23.1) |
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 #C00A28 | 6.33:1 | AA | Lc -84.3 | Fine for body text |
| Black text on #C00A28 | 3.31:1 | AA large text | Lc 25.0 | Dividers and decoration only |
| #C00A28 text on white | 6.33:1 | AA | Lc 79.1 | Fine for body text |
| #C00A28 text on black | 3.31:1 | AA large text | Lc -22.7 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E1
oklch(93.6% 0.029 23)
-
Step 200
200
#FBCCC8
oklch(88.5% 0.054 23.9)
-
Step 300
300
#FAA8A3
oklch(81% 0.098 23.3)
-
Step 400
400
#F37471
oklch(70.8% 0.157 23.3)
-
Step 500
500
#EA464C
oklch(63.2% 0.2 23.1)
-
Step 600
600
#D5112F
oklch(55.5% 0.218 23)
-
Step 700
700 (this color)
#C00A28
oklch(51.3% 0.203 23.1)
-
Step 800
800
#96081D
oklch(42.8% 0.168 23.3)
-
Step 900
900
#78171E
oklch(37.7% 0.131 22.8)
-
Step 950
950
#471012
oklch(27% 0.084 22.8)
#C00A28 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) | #4F4827 | 0.226 |
| Deuteranopia (no green cones) | #796C20 | 0.203 |
| Tritanopia (no blue cones) | #D4001B | 0.042 |
| Achromatopsia (no color) | #606060 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C00A28
#C00A28
oklch(51.3% 0.203 23.1)
- #00757D
#00757D
oklch(51.2% 0.087 203.1)
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 #C00A28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.009
- Scarlet #BE0119 ΔE 0.013
- Rose Red #BE013C ΔE 0.026
- Firebrick #B22222 ΔE 0.031
- Cherry #CF0234 ΔE 0.033
- Ruby #CA0147 ΔE 0.042
- Rufous #AE2012 ΔE 0.043
- Rouge #AB1239 ΔE 0.048
Use #C00A28 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.