#CA3B27
Closest named color: Dull Red (#BB3F3F). oklch(56.2% 0.183 31.1), rgb(202, 59, 39).
Aa
White text reads best on this color (5.04:1).
About this color
#CA3B27 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.183 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.036 away. White text reads best on it, at 5.04:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 4.16:1 |
| White text | 5.04:1 |
Values
| HEX | #CA3B27 |
| RGB | rgb(202, 59, 39) |
| HSL | hsl(7, 68%, 47%) |
| OKLCH | oklch(56.2% 0.183 31.1) |
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 #CA3B27 | 5.04:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #CA3B27 | 4.16:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #CA3B27 text on white | 5.04:1 | AA | Lc 73.6 | Content text, not long reading |
| #CA3B27 text on black | 4.16:1 | AA large text | Lc -28.1 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#F9E4E0
oklch(93.5% 0.024 30.5)
-
Step 200
200
#F6CFC7
oklch(88.6% 0.046 31.6)
-
Step 300
300
#F1ADA0
oklch(80.8% 0.083 31.1)
-
Step 400
400
#E77F6D
oklch(70.7% 0.132 31)
-
Step 500
500
#DC5945
oklch(63% 0.168 31)
-
Step 600
600 (this color)
#CA3B27
oklch(56.2% 0.183 31.1)
-
Step 700
700
#AC2917
oklch(49% 0.17 31.2)
-
Step 800
800
#8C2516
oklch(42.8% 0.141 31.4)
-
Step 900
900
#702519
oklch(37.7% 0.109 31.6)
-
Step 950
950
#421710
oklch(27% 0.069 31.3)
#CA3B27 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) | #665B23 | 0.192 |
| Deuteranopia (no green cones) | #897A20 | 0.175 |
| Tritanopia (no blue cones) | #DF0038 | 0.061 |
| Achromatopsia (no color) | #6F6F6F | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA3B27
#CA3B27
oklch(56.2% 0.183 31.1)
- #008496
#008496
oklch(56.3% 0.098 211.4)
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 #CA3B27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.036
- Sinopia #BB3E03 ΔE 0.037
- Brick Orange #C14A09 ΔE 0.038
- Burnt Orange #C04E01 ΔE 0.046
- Faded Red #D3494E ΔE 0.046
- Dusty Red #B9484E ΔE 0.049
- Dark Coral #CF524E ΔE 0.050
- Cherry #CF0234 ΔE 0.054
Use #CA3B27 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.