#CD243B
Closest named color: Cherry (#CF0234). oklch(55.1% 0.201 20.8), rgb(205, 36, 59).
Aa
White text reads best on this color (5.36:1).
About this color
#CD243B is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.201 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.019 away. White text reads best on it, at 5.36:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.201) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.91:1 |
| White text | 5.36:1 |
Values
| HEX | #CD243B |
| RGB | rgb(205, 36, 59) |
| HSL | hsl(352, 70%, 47%) |
| OKLCH | oklch(55.1% 0.201 20.8) |
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 #CD243B | 5.36:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #CD243B | 3.91:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #CD243B text on white | 5.36:1 | AA | Lc 75.0 | Content text, not long reading |
| #CD243B text on black | 3.91:1 | AA large text | Lc -26.8 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E2
oklch(93.5% 0.026 20.5)
-
Step 200
200
#F9CDCB
oklch(88.6% 0.05 21.2)
-
Step 300
300
#F6A9A8
oklch(80.9% 0.091 20.1)
-
Step 400
400
#ED7879
oklch(70.7% 0.145 20.9)
-
Step 500
500
#E34E57
oklch(63% 0.184 20.8)
-
Step 600
600 (this color)
#CD243B
oklch(55.1% 0.201 20.8)
-
Step 700
700
#B2142F
oklch(49% 0.187 20.6)
-
Step 800
800
#911727
oklch(42.7% 0.155 20.9)
-
Step 900
900
#741D24
oklch(37.6% 0.12 20.9)
-
Step 950
950
#451316
oklch(27.1% 0.077 20.4)
#CD243B 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) | #5A543A | 0.223 |
| Deuteranopia (no green cones) | #847735 | 0.202 |
| Tritanopia (no blue cones) | #E2002F | 0.041 |
| Achromatopsia (no color) | #6A6A6A | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CD243B
#CD243B
oklch(55.1% 0.201 20.8)
- #008288
#008288
oklch(55.2% 0.094 200.5)
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 #CD243B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.019
- Crimson #DC143C ΔE 0.029
- Lipstick #D5174E ΔE 0.031
- Ruby #CA0147 ΔE 0.033
- Lipstick Red #C0022F ΔE 0.040
- Dull Red #BB3F3F ΔE 0.043
- Rose Red #BE013C ΔE 0.045
- Scarlet #BE0119 ΔE 0.050
Use #CD243B 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.