#C21638
Closest named color: Lipstick Red (#C0022F). oklch(52.3% 0.199 19.2), rgb(194, 22, 56).
Aa
White text reads best on this color (6.05:1).
About this color
#C21638 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.199 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Lipstick Red (#C0022F), ΔE 0.014 away. White text reads best on it, at 6.05:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.199) |
| Temperature | warm |
| Nearest name | Lipstick Red (#C0022F) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #C21638 |
| RGB | rgb(194, 22, 56) |
| HSL | hsl(348, 80%, 42%) |
| OKLCH | oklch(52.3% 0.199 19.2) |
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 #C21638 | 6.05:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #C21638 | 3.46:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #C21638 text on white | 6.05:1 | AA | Lc 78.2 | Fine for body text |
| #C21638 text on black | 3.46:1 | AA large text | Lc -23.6 | 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
#FBCCCB
oklch(88.6% 0.053 19.6)
-
Step 300
300
#F9A7A8
oklch(80.8% 0.097 18.6)
-
Step 400
400
#F17479
oklch(70.7% 0.154 19.4)
-
Step 500
500
#E84657
oklch(63% 0.198 19.2)
-
Step 600
600
#D4153D
oklch(55.7% 0.215 19.2)
-
Step 700
700 (this color)
#C21638
oklch(52.3% 0.199 19.2)
-
Step 800
800
#940B28
oklch(42.7% 0.165 19)
-
Step 900
900
#771825
oklch(37.7% 0.128 18.9)
-
Step 950
950
#461116
oklch(27% 0.081 19.1)
#C21638 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) | #514C38 | 0.222 |
| Deuteranopia (no green cones) | #7A6F32 | 0.203 |
| Tritanopia (no blue cones) | #D60027 | 0.042 |
| Achromatopsia (no color) | #626262 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C21638
#C21638
oklch(52.3% 0.199 19.2)
- #00797D
#00797D
oklch(52.3% 0.089 198.8)
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 #C21638, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lipstick Red #C0022F ΔE 0.014
- Rose Red #BE013C ΔE 0.018
- Cherry #CF0234 ΔE 0.025
- Ruby #CA0147 ΔE 0.027
- Scarlet #BE0119 ΔE 0.030
- Firebrick #B22222 ΔE 0.041
- Lipstick #D5174E ΔE 0.047
- Dull Red #BB3F3F ΔE 0.048
Use #C21638 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.