#CA3181
Closest named color: Medium Violet Red (#C71585). oklch(57.3% 0.2 353.7), rgb(202, 49, 129).
Aa
White text reads best on this color (4.92:1).
About this color
#CA3181 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.200 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Violet Red (#C71585), ΔE 0.033 away. White text reads best on it, at 4.92:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.200) |
| Temperature | warm |
| Nearest name | Medium Violet Red (#C71585) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #CA3181 |
| RGB | rgb(202, 49, 129) |
| HSL | hsl(329, 61%, 49%) |
| OKLCH | oklch(57.3% 0.2 353.7) |
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 #CA3181 | 4.92:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #CA3181 | 4.26:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #CA3181 text on white | 4.92:1 | AA | Lc 72.7 | Content text, not long reading |
| #CA3181 text on black | 4.26:1 | AA large text | Lc -28.9 | 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
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#F9E3EB
oklch(93.6% 0.026 353.5)
-
Step 200
200
#F5CCDB
oklch(88.5% 0.05 354.2)
-
Step 300
300
#EFA9C5
oklch(80.9% 0.089 353.6)
-
Step 400
400
#E477A7
oklch(70.6% 0.145 353.7)
-
Step 500
500
#D94F92
oklch(63.2% 0.184 353.6)
-
Step 600
600 (this color)
#CA3181
oklch(57.3% 0.2 353.7)
-
Step 700
700
#A91A68
oklch(49.2% 0.186 354)
-
Step 800
800
#891A55
oklch(42.7% 0.154 353.7)
-
Step 900
900
#6E1E46
oklch(37.6% 0.12 353.7)
-
Step 950
950
#411329
oklch(27% 0.076 353.7)
#CA3181 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) | #4F5F83 | 0.225 |
| Deuteranopia (no green cones) | #7A7B7E | 0.200 |
| Tritanopia (no blue cones) | #DA2055 | 0.070 |
| Achromatopsia (no color) | #707070 | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA3181
#CA3181
oklch(57.3% 0.2 353.7)
- #008D73
#008D73
oklch(57.4% 0.11 173.6)
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 #CA3181, closest first.
No curated palette has a color within ΔE 0.04 of #CA3181.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Violet Red #C71585 ΔE 0.033
- Dark Pink #CB416B ΔE 0.048
- Dark Hot Pink #D90166 ΔE 0.050
- Cerise #DE0C62 ΔE 0.059
- Deep Rose #C74767 ΔE 0.060
- Lipstick #D5174E ΔE 0.075
- Dark Rose #B5485D ΔE 0.081
- Ruby #CA0147 ΔE 0.082
Use #CA3181 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.