#CA3666
Closest named color: Dark Pink (#CB416B). oklch(56.9% 0.186 6), rgb(202, 54, 102).
Aa
White text reads best on this color (4.96:1).
About this color
#CA3666 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.186 and its hue 6°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Pink (#CB416B), ΔE 0.017 away. White text reads best on it, at 4.96:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.186) |
| Temperature | warm |
| Nearest name | Dark Pink (#CB416B) |
| Black text | 4.23:1 |
| White text | 4.96:1 |
Values
| HEX | #CA3666 |
| RGB | rgb(202, 54, 102) |
| HSL | hsl(341, 58%, 50%) |
| OKLCH | oklch(56.9% 0.186 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 #CA3666 | 4.96:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #CA3666 | 4.23:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #CA3666 text on white | 4.96:1 | AA | Lc 73.1 | Content text, not long reading |
| #CA3666 text on black | 4.23:1 | AA large text | Lc -28.6 | 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
#FDF2F4
oklch(97% 0.012 4.7)
-
Step 100
100
#F9E4E7
oklch(93.7% 0.023 7.7)
-
Step 200
200
#F6CDD4
oklch(88.5% 0.047 6.5)
-
Step 300
300
#F0AAB8
oklch(80.8% 0.084 5.9)
-
Step 400
400
#E57A94
oklch(70.6% 0.134 5.6)
-
Step 500
500
#DA5379
oklch(63% 0.171 6.1)
-
Step 600
600 (this color)
#CA3666
oklch(56.9% 0.186 6)
-
Step 700
700
#AA2251
oklch(49.1% 0.173 6.3)
-
Step 800
800
#8A1F43
oklch(42.7% 0.144 5.8)
-
Step 900
900
#6F2138
oklch(37.7% 0.111 6.3)
-
Step 950
950
#421521
oklch(27.1% 0.071 6.6)
#CA3666 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) | #5A5D67 | 0.208 |
| Deuteranopia (no green cones) | #817B62 | 0.190 |
| Tritanopia (no blue cones) | #DC154A | 0.050 |
| Achromatopsia (no color) | #707070 | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA3666
#CA3666
oklch(56.9% 0.186 6)
- #008A80
#008A80
oklch(57% 0.1 185.9)
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 #CA3666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Pink #CB416B ΔE 0.017
- Deep Rose #C74767 ΔE 0.027
- Lipstick #D5174E ΔE 0.040
- Dark Hot Pink #D90166 ΔE 0.043
- Cerise #DE0C62 ΔE 0.044
- Dark Rose #B5485D ΔE 0.049
- Ruby #CA0147 ΔE 0.051
- Dusty Red #B9484E ΔE 0.058
Use #CA3666 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.