#CF243F
Closest named color: Cherry (#CF0234). oklch(55.5% 0.203 19.6), rgb(207, 36, 63).
Aa
White text reads best on this color (5.28:1).
About this color
#CF243F is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.203 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.020 away. White text reads best on it, at 5.28:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.203) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #CF243F |
| RGB | rgb(207, 36, 63) |
| HSL | hsl(351, 70%, 48%) |
| OKLCH | oklch(55.5% 0.203 19.6) |
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 #CF243F | 5.28:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #CF243F | 3.97:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #CF243F text on white | 5.28:1 | AA | Lc 74.4 | Content text, not long reading |
| #CF243F text on black | 3.97:1 | AA large text | Lc -27.3 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#F9CDCC
oklch(88.6% 0.05 19.7)
-
Step 300
300
#F6A9A9
oklch(80.9% 0.091 19.2)
-
Step 400
400
#ED777B
oklch(70.6% 0.146 19.4)
-
Step 500
500
#E44D59
oklch(63.1% 0.186 19.8)
-
Step 600
600 (this color)
#CF243F
oklch(55.5% 0.203 19.6)
-
Step 700
700
#B31231
oklch(49.1% 0.189 19.7)
-
Step 800
800
#911629
oklch(42.7% 0.156 19.8)
-
Step 900
900
#751C26
oklch(37.7% 0.122 19.3)
-
Step 950
950
#451316
oklch(27.1% 0.077 20.4)
#CF243F 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) | #5A553F | 0.225 |
| Deuteranopia (no green cones) | #857839 | 0.204 |
| Tritanopia (no blue cones) | #E40031 | 0.041 |
| Achromatopsia (no color) | #6C6C6C | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CF243F
#CF243F
oklch(55.5% 0.203 19.6)
- #008388
#008388
oklch(55.4% 0.094 199.5)
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 #CF243F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.020
- Crimson #DC143C ΔE 0.025
- Lipstick #D5174E ΔE 0.026
- Ruby #CA0147 ΔE 0.032
- Lipstick Red #C0022F ΔE 0.044
- Dull Red #BB3F3F ΔE 0.046
- Rose Red #BE013C ΔE 0.048
- Faded Red #D3494E ΔE 0.052
Use #CF243F 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.