#CA2539
Closest named color: Cherry (#CF0234). oklch(54.6% 0.198 21.3), rgb(202, 37, 57).
Aa
White text reads best on this color (5.47:1).
About this color
#CA2539 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.198 and its hue 21°. 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 5.47:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.198) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.83:1 |
| White text | 5.47:1 |
Values
| HEX | #CA2539 |
| RGB | rgb(202, 37, 57) |
| HSL | hsl(353, 69%, 47%) |
| OKLCH | oklch(54.6% 0.198 21.3) |
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 #CA2539 | 5.47:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #CA2539 | 3.83:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #CA2539 text on white | 5.47:1 | AA | Lc 75.6 | Fine for body text |
| #CA2539 text on black | 3.83:1 | AA large text | Lc -26.1 | 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
#FDF2F2
oklch(97% 0.012 17.4)
-
Step 100
100
#FBE4E2
oklch(93.7% 0.025 23.6)
-
Step 200
200
#F8CDCB
oklch(88.5% 0.049 21.2)
-
Step 300
300
#F5AAA7
oklch(80.9% 0.089 21.8)
-
Step 400
400
#EC7979
oklch(70.7% 0.142 21.3)
-
Step 500
500
#E25057
oklch(63.1% 0.181 21.3)
-
Step 600
600 (this color)
#CA2539
oklch(54.6% 0.198 21.3)
-
Step 700
700
#B1182E
oklch(49% 0.184 21.3)
-
Step 800
800
#901A27
oklch(42.7% 0.152 21.4)
-
Step 900
900
#741E24
oklch(37.7% 0.119 21.3)
-
Step 950
950
#441315
oklch(26.9% 0.076 21.4)
#CA2539 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) | #595338 | 0.219 |
| Deuteranopia (no green cones) | #827633 | 0.200 |
| Tritanopia (no blue cones) | #DE002F | 0.039 |
| Achromatopsia (no color) | #696969 | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA2539
#CA2539
oklch(54.6% 0.198 21.3)
- #008087
#008087
oklch(54.6% 0.093 201.5)
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 #CA2539, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.020
- Ruby #CA0147 ΔE 0.034
- Crimson #DC143C ΔE 0.035
- Lipstick Red #C0022F ΔE 0.035
- Lipstick #D5174E ΔE 0.036
- Dull Red #BB3F3F ΔE 0.039
- Rose Red #BE013C ΔE 0.042
- Scarlet #BE0119 ΔE 0.045
Use #CA2539 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.