#CF0343
Closest named color: Ruby (#CA0147). oklch(54.4% 0.216 15.7), rgb(207, 3, 67).
Aa
White text reads best on this color (5.60:1).
About this color
#CF0343 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.216 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Ruby (#CA0147), ΔE 0.013 away. White text reads best on it, at 5.60:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.216) |
| Temperature | warm |
| Nearest name | Ruby (#CA0147) |
| Black text | 3.74:1 |
| White text | 5.60:1 |
Values
| HEX | #CF0343 |
| RGB | rgb(207, 3, 67) |
| HSL | hsl(341, 97%, 41%) |
| OKLCH | oklch(54.4% 0.216 15.7) |
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 #CF0343 | 5.60:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #CF0343 | 3.74:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #CF0343 text on white | 5.60:1 | AA | Lc 75.4 | Fine for body text |
| #CF0343 text on black | 3.74:1 | AA large text | Lc -26.3 | 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
#FCE3E3
oklch(93.6% 0.028 17.7)
-
Step 200
200
#FBCBCD
oklch(88.4% 0.055 15.4)
-
Step 300
300
#F9A7AC
oklch(81% 0.097 15.4)
-
Step 400
400
#F17380
oklch(70.7% 0.155 15.5)
-
Step 500
500
#E84560
oklch(63.1% 0.199 15.6)
-
Step 600
600 (this color)
#CF0343
oklch(54.4% 0.216 15.7)
-
Step 700
700
#B50039
oklch(49.1% 0.196 15.7)
-
Step 800
800
#94072F
oklch(42.6% 0.166 15.5)
-
Step 900
900
#771729
oklch(37.7% 0.129 16.1)
-
Step 950
950
#461018
oklch(26.9% 0.082 16.2)
#CF0343 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) | #524F43 | 0.244 |
| Deuteranopia (no green cones) | #80753D | 0.221 |
| Tritanopia (no blue cones) | #E40027 | 0.053 |
| Achromatopsia (no color) | #686868 | 0.218 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CF0343
#CF0343
oklch(54.4% 0.216 15.7)
- #008081
#008081
oklch(54.4% 0.093 195.7)
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 #CF0343, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ruby #CA0147 ΔE 0.013
- Cherry #CF0234 ΔE 0.018
- Lipstick #D5174E ΔE 0.020
- Crimson #DC143C ΔE 0.033
- Rose Red #BE013C ΔE 0.037
- Lipstick Red #C0022F ΔE 0.039
- Cerise #DE0C62 ΔE 0.050
- Dark Hot Pink #D90166 ΔE 0.052
Use #CF0343 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.