#CA1D1B
Closest named color: Cherry (#CF0234). oklch(53.8% 0.205 28.1), rgb(202, 29, 27).
Aa
White text reads best on this color (5.67:1).
About this color
#CA1D1B is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.205 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.031 away. White text reads best on it, at 5.67:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.205) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.70:1 |
| White text | 5.67:1 |
Values
| HEX | #CA1D1B |
| RGB | rgb(202, 29, 27) |
| HSL | hsl(1, 76%, 45%) |
| OKLCH | oklch(53.8% 0.205 28.1) |
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 #CA1D1B | 5.67:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #CA1D1B | 3.70:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #CA1D1B text on white | 5.67:1 | AA | Lc 76.3 | Fine for body text |
| #CA1D1B text on black | 3.70:1 | AA large text | Lc -25.4 | 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
#FEF3F1
oklch(97.2% 0.012 29.9)
-
Step 100
100
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#F9CDC6
oklch(88.4% 0.051 28.7)
-
Step 300
300
#F7AA9F
oklch(80.9% 0.093 28.3)
-
Step 400
400
#EE796B
oklch(70.7% 0.147 28.4)
-
Step 500
500
#E54E43
oklch(63.1% 0.189 27.9)
-
Step 600
600 (this color)
#CA1D1B
oklch(53.8% 0.205 28.1)
-
Step 700
700
#B41414
oklch(49.1% 0.191 28.1)
-
Step 800
800
#921714
oklch(42.7% 0.158 28.1)
-
Step 900
900
#751D18
oklch(37.6% 0.123 27.9)
-
Step 950
950
#45130F
oklch(26.9% 0.078 28)
#CA1D1B 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) | #594F17 | 0.224 |
| Deuteranopia (no green cones) | #82740D | 0.203 |
| Tritanopia (no blue cones) | #DF0020 | 0.041 |
| Achromatopsia (no color) | #676767 | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA1D1B
#CA1D1B
oklch(53.8% 0.205 28.1)
- #007D8A
#007D8A
oklch(53.9% 0.093 207.5)
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 #CA1D1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.031
- Scarlet #BE0119 ΔE 0.034
- Lipstick Red #C0022F ΔE 0.038
- Dull Red #BB3F3F ΔE 0.047
- Crimson #DC143C ΔE 0.048
- Firebrick #B22222 ΔE 0.049
- Sinopia #BB3E03 ΔE 0.050
- Rose Red #BE013C ΔE 0.052
Use #CA1D1B 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.