#CA3136
Closest named color: Dull Red (#BB3F3F). oklch(55.5% 0.189 24.4), rgb(202, 49, 54).
Aa
White text reads best on this color (5.24:1).
About this color
#CA3136 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.189 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.031 away. White text reads best on it, at 5.24:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.189) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #CA3136 |
| RGB | rgb(202, 49, 54) |
| HSL | hsl(358, 61%, 49%) |
| OKLCH | oklch(55.5% 0.189 24.4) |
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 #CA3136 | 5.24:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #CA3136 | 4.00:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #CA3136 text on white | 5.24:1 | AA | Lc 74.6 | Content text, not long reading |
| #CA3136 text on black | 4.00:1 | AA large text | Lc -27.1 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E2
oklch(93.6% 0.024 23.9)
-
Step 200
200
#F7CECA
oklch(88.5% 0.047 24.6)
-
Step 300
300
#F3ABA5
oklch(80.8% 0.086 24.5)
-
Step 400
400
#E97C76
oklch(70.7% 0.136 24.4)
-
Step 500
500
#DF5452
oklch(63% 0.174 24.3)
-
Step 600
600 (this color)
#CA3136
oklch(55.5% 0.189 24.4)
-
Step 700
700
#AF2229
oklch(49.2% 0.176 24.5)
-
Step 800
800
#8E1F23
oklch(42.7% 0.146 24.3)
-
Step 900
900
#722121
oklch(37.6% 0.114 24.4)
-
Step 950
950
#431514
oklch(27% 0.072 24.4)
#CA3136 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) | #5F5735 | 0.206 |
| Deuteranopia (no green cones) | #857830 | 0.188 |
| Tritanopia (no blue cones) | #DE0035 | 0.044 |
| Achromatopsia (no color) | #6C6C6C | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA3136
#CA3136
oklch(55.5% 0.189 24.4)
- #00828D
#00828D
oklch(55.4% 0.095 205.2)
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 #CA3136, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.031
- Cherry #CF0234 ΔE 0.034
- Crimson #DC143C ΔE 0.040
- Dusty Red #B9484E ΔE 0.045
- Lipstick #D5174E ΔE 0.046
- Faded Red #D3494E ΔE 0.046
- Lipstick Red #C0022F ΔE 0.048
- Ruby #CA0147 ΔE 0.049
Use #CA3136 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.