#CA3240
Closest named color: Dull Red (#BB3F3F). oklch(55.7% 0.188 21.2), rgb(202, 50, 64).
Aa
White text reads best on this color (5.19:1).
About this color
#CA3240 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.188 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.032 away. White text reads best on it, at 5.19:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.188) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.04:1 |
| White text | 5.19:1 |
Values
| HEX | #CA3240 |
| RGB | rgb(202, 50, 64) |
| HSL | hsl(354, 60%, 49%) |
| OKLCH | oklch(55.7% 0.188 21.2) |
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 #CA3240 | 5.19:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #CA3240 | 4.04:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #CA3240 text on white | 5.19:1 | AA | Lc 74.4 | Content text, not long reading |
| #CA3240 text on black | 4.04:1 | AA large text | Lc -27.4 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E3
oklch(93.6% 0.024 20.7)
-
Step 200
200
#F7CECC
oklch(88.6% 0.047 21.4)
-
Step 300
300
#F3ABA9
oklch(80.9% 0.085 20.9)
-
Step 400
400
#E97B7B
oklch(70.7% 0.136 21.1)
-
Step 500
500
#DE545A
oklch(63% 0.173 21)
-
Step 600
600 (this color)
#CA3240
oklch(55.7% 0.188 21.2)
-
Step 700
700
#AE2232
oklch(49.1% 0.174 21.1)
-
Step 800
800
#8D1F2A
oklch(42.6% 0.145 20.9)
-
Step 900
900
#722126
oklch(37.7% 0.113 21)
-
Step 950
950
#431517
oklch(27% 0.071 20.7)
#CA3240 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) | #5E583F | 0.206 |
| Deuteranopia (no green cones) | #85783B | 0.187 |
| Tritanopia (no blue cones) | #DE0039 | 0.043 |
| Achromatopsia (no color) | #6D6D6D | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA3240
#CA3240
oklch(55.7% 0.188 21.2)
- #00848A
#00848A
oklch(55.8% 0.095 200.4)
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 #CA3240, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.032
- Cherry #CF0234 ΔE 0.033
- Crimson #DC143C ΔE 0.037
- Lipstick #D5174E ΔE 0.038
- Dusty Red #B9484E ΔE 0.041
- Faded Red #D3494E ΔE 0.043
- Ruby #CA0147 ΔE 0.043
- Lipstick Red #C0022F ΔE 0.049
Use #CA3240 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.