#C21F22
Closest named color: Scarlet (#BE0119). oklch(52.5% 0.196 26.7), rgb(194, 31, 34).
Aa
White text reads best on this color (5.97:1).
About this color
#C21F22 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.196 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.022 away. White text reads best on it, at 5.97:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.196) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #C21F22 |
| RGB | rgb(194, 31, 34) |
| HSL | hsl(359, 72%, 44%) |
| OKLCH | oklch(52.5% 0.196 26.7) |
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 #C21F22 | 5.97:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #C21F22 | 3.51:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #C21F22 text on white | 5.97:1 | AA | Lc 78.0 | Fine for body text |
| #C21F22 text on black | 3.51:1 | AA large text | Lc -23.8 | 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 600.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F8CDC8
oklch(88.4% 0.049 25.9)
-
Step 300
300
#F5ABA2
oklch(81% 0.089 26.9)
-
Step 400
400
#EC7A70
oklch(70.7% 0.142 26.5)
-
Step 500
500
#E2524A
oklch(63.1% 0.181 26.7)
-
Step 600
600 (this color)
#C21F22
oklch(52.5% 0.196 26.7)
-
Step 700
700
#B11D1F
oklch(49.1% 0.182 26.8)
-
Step 800
800
#901C1C
oklch(42.7% 0.152 26.5)
-
Step 900
900
#73201C
oklch(37.6% 0.117 27.1)
-
Step 950
950
#441411
oklch(26.9% 0.075 26.9)
#C21F22 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) | #564D20 | 0.214 |
| Deuteranopia (no green cones) | #7D7019 | 0.195 |
| Tritanopia (no blue cones) | #D60023 | 0.039 |
| Achromatopsia (no color) | #636363 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C21F22
#C21F22
oklch(52.5% 0.196 26.7)
- #007884
#007884
oklch(52.3% 0.09 207)
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 #C21F22, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.022
- Lipstick Red #C0022F ΔE 0.027
- Firebrick #B22222 ΔE 0.032
- Cherry #CF0234 ΔE 0.035
- Rose Red #BE013C ΔE 0.041
- Dull Red #BB3F3F ΔE 0.042
- Rufous #AE2012 ΔE 0.043
- Rusty Red #AF2F0D ΔE 0.043
Use #C21F22 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.