#CA0556
Closest named color: Ruby (#CA0147). oklch(53.9% 0.214 8.1), rgb(202, 5, 86).
Aa
White text reads best on this color (5.72:1).
About this color
#CA0556 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.214 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Ruby (#CA0147), ΔE 0.021 away. White text reads best on it, at 5.72:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.214) |
| Temperature | warm |
| Nearest name | Ruby (#CA0147) |
| Black text | 3.66:1 |
| White text | 5.72:1 |
Values
| HEX | #CA0556 |
| RGB | rgb(202, 5, 86) |
| HSL | hsl(335, 95%, 41%) |
| OKLCH | oklch(53.9% 0.214 8.1) |
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 #CA0556 | 5.72:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #CA0556 | 3.66:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #CA0556 text on white | 5.72:1 | AA | Lc 76.1 | Fine for body text |
| #CA0556 text on black | 3.66:1 | AA large text | Lc -25.6 | 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
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FCE3E6
oklch(93.7% 0.028 9.4)
-
Step 200
200
#FACBD2
oklch(88.5% 0.054 8.2)
-
Step 300
300
#F7A7B5
oklch(81% 0.096 7.9)
-
Step 400
400
#EF738E
oklch(70.8% 0.154 8.2)
-
Step 500
500
#E54672
oklch(63.1% 0.196 8.3)
-
Step 600
600 (this color)
#CA0556
oklch(53.9% 0.214 8.1)
-
Step 700
700
#B3004B
oklch(49.1% 0.197 8.1)
-
Step 800
800
#920B3D
oklch(42.7% 0.164 8.3)
-
Step 900
900
#751734
oklch(37.6% 0.128 8.1)
-
Step 950
950
#45101F
oklch(26.9% 0.082 7.4)
#CA0556 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) | #4C4F57 | 0.243 |
| Deuteranopia (no green cones) | #7B7351 | 0.219 |
| Tritanopia (no blue cones) | #DD0032 | 0.062 |
| Achromatopsia (no color) | #666666 | 0.216 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA0556
#CA0556
oklch(53.9% 0.214 8.1)
- #007F78
#007F78
oklch(53.7% 0.093 188)
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 #CA0556, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ruby #CA0147 ΔE 0.021
- Lipstick #D5174E ΔE 0.032
- Dark Hot Pink #D90166 ΔE 0.037
- Rose Red #BE013C ΔE 0.042
- Cerise #DE0C62 ΔE 0.044
- Cherry #CF0234 ΔE 0.046
- Lipstick Red #C0022F ΔE 0.054
- Crimson #DC143C ΔE 0.056
Use #CA0556 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.