#CD1821
Closest named color: Cherry (#CF0234). oklch(54.2% 0.21 26.4), rgb(205, 24, 33).
Aa
White text reads best on this color (5.60:1).
About this color
#CD1821 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.210 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.024 away. White text reads best on it, at 5.60:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.210) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.74:1 |
| White text | 5.60:1 |
Values
| HEX | #CD1821 |
| RGB | rgb(205, 24, 33) |
| HSL | hsl(357, 79%, 45%) |
| OKLCH | oklch(54.2% 0.21 26.4) |
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 #CD1821 | 5.60:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #CD1821 | 3.74:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #CD1821 text on white | 5.60:1 | AA | Lc 75.8 | Fine for body text |
| #CD1821 text on black | 3.74:1 | AA large text | Lc -25.9 | 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 600.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E0
oklch(93.5% 0.028 25.9)
-
Step 200
200
#FACDC7
oklch(88.6% 0.052 27)
-
Step 300
300
#F8A9A0
oklch(80.9% 0.095 26.5)
-
Step 400
400
#F0776D
oklch(70.7% 0.151 26.4)
-
Step 500
500
#E74B46
oklch(63.1% 0.193 26.2)
-
Step 600
600 (this color)
#CD1821
oklch(54.2% 0.21 26.4)
-
Step 700
700
#B60B18
oklch(49.2% 0.195 26.5)
-
Step 800
800
#931317
oklch(42.6% 0.161 26.5)
-
Step 900
900
#761B1A
oklch(37.6% 0.126 26.1)
-
Step 950
950
#461210
oklch(27% 0.08 26.2)
#CD1821 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) | #594F1E | 0.230 |
| Deuteranopia (no green cones) | #837516 | 0.208 |
| Tritanopia (no blue cones) | #E2001F | 0.041 |
| Achromatopsia (no color) | #686868 | 0.211 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CD1821
#CD1821
oklch(54.2% 0.21 26.4)
- #007E8A
#007E8A
oklch(54.2% 0.093 206.5)
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 #CD1821, closest first.
No curated palette has a color within ΔE 0.04 of #CD1821.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.024
- Scarlet #BE0119 ΔE 0.037
- Lipstick Red #C0022F ΔE 0.037
- Crimson #DC143C ΔE 0.040
- Ruby #CA0147 ΔE 0.048
- Rose Red #BE013C ΔE 0.050
- Dull Red #BB3F3F ΔE 0.050
- Lipstick #D5174E ΔE 0.052
Use #CD1821 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.