#CA1921
Closest named color: Cherry (#CF0234). oklch(53.6% 0.207 26.5), rgb(202, 25, 33).
Aa
White text reads best on this color (5.71:1).
About this color
#CA1921 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.207 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.025 away. White text reads best on it, at 5.71:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.207) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.67:1 |
| White text | 5.71:1 |
Values
| HEX | #CA1921 |
| RGB | rgb(202, 25, 33) |
| HSL | hsl(357, 78%, 45%) |
| OKLCH | oklch(53.6% 0.207 26.5) |
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 #CA1921 | 5.71:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #CA1921 | 3.67:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #CA1921 text on white | 5.71:1 | AA | Lc 76.5 | Fine for body text |
| #CA1921 text on black | 3.67:1 | AA large text | Lc -25.3 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE4E0
oklch(93.7% 0.027 28.9)
-
Step 200
200
#FACDC7
oklch(88.6% 0.052 27)
-
Step 300
300
#F7AAA1
oklch(81% 0.092 26.7)
-
Step 400
400
#EF786E
oklch(70.8% 0.148 26.4)
-
Step 500
500
#E64D47
oklch(63.2% 0.19 26.4)
-
Step 600
600 (this color)
#CA1921
oklch(53.6% 0.207 26.5)
-
Step 700
700
#B4101A
oklch(49% 0.192 26.4)
-
Step 800
800
#931518
oklch(42.8% 0.16 26.5)
-
Step 900
900
#761C1A
oklch(37.7% 0.125 26.5)
-
Step 950
950
#451310
oklch(27% 0.078 27)
#CA1921 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) | #584E1E | 0.226 |
| Deuteranopia (no green cones) | #827316 | 0.204 |
| Tritanopia (no blue cones) | #DF0020 | 0.041 |
| Achromatopsia (no color) | #666666 | 0.208 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA1921
#CA1921
oklch(53.6% 0.207 26.5)
- #007C88
#007C88
oklch(53.6% 0.092 206.6)
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 #CA1921, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.025
- Scarlet #BE0119 ΔE 0.032
- Lipstick Red #C0022F ΔE 0.033
- Crimson #DC143C ΔE 0.045
- Rose Red #BE013C ΔE 0.046
- Ruby #CA0147 ΔE 0.048
- Dull Red #BB3F3F ΔE 0.048
- Firebrick #B22222 ΔE 0.048
Use #CA1921 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.