#CA240D
Closest named color: Scarlet (#BE0119). oklch(54.1% 0.203 31.1), rgb(202, 36, 13).
Aa
White text reads best on this color (5.57:1).
About this color
#CA240D is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.203 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.041 away. White text reads best on it, at 5.57:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.203) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.76:1 |
| White text | 5.57:1 |
Values
| HEX | #CA240D |
| RGB | rgb(202, 36, 13) |
| HSL | hsl(7, 88%, 42%) |
| OKLCH | oklch(54.1% 0.203 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 #CA240D | 5.57:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #CA240D | 3.76:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #CA240D text on white | 5.57:1 | AA | Lc 76.0 | Fine for body text |
| #CA240D text on black | 3.76:1 | AA large text | Lc -25.8 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F9CEC5
oklch(88.6% 0.05 31.8)
-
Step 300
300
#F6AB9D
oklch(81% 0.091 30.9)
-
Step 400
400
#ED7A67
oklch(70.7% 0.146 30.8)
-
Step 500
500
#E4513B
oklch(63.1% 0.187 31.2)
-
Step 600
600 (this color)
#CA240D
oklch(54.1% 0.203 31.1)
-
Step 700
700
#B31904
oklch(49.1% 0.189 30.9)
-
Step 800
800
#911A0B
oklch(42.6% 0.156 30.9)
-
Step 900
900
#751F13
oklch(37.8% 0.122 31.1)
-
Step 950
950
#45140D
oklch(27.1% 0.077 30.8)
#CA240D 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) | #5C5104 | 0.219 |
| Deuteranopia (no green cones) | #847500 | 0.196 |
| Tritanopia (no blue cones) | #DF0022 | 0.045 |
| Achromatopsia (no color) | #686868 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA240D
#CA240D
oklch(54.1% 0.203 31.1)
- #007D8E
#007D8E
oklch(54.1% 0.094 211.3)
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 #CA240D, closest first.
No curated palette has a color within ΔE 0.04 of #CA240D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.041
- Cherry #CF0234 ΔE 0.041
- Sinopia #BB3E03 ΔE 0.042
- Lipstick Red #C0022F ΔE 0.048
- Dull Red #BB3F3F ΔE 0.048
- Firebrick #B22222 ΔE 0.052
- Rusty Red #AF2F0D ΔE 0.053
- Crimson #DC143C ΔE 0.054
Use #CA240D 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.