#CA210F
Closest named color: Scarlet (#BE0119). oklch(53.9% 0.204 30.4), rgb(202, 33, 15).
Aa
White text reads best on this color (5.62:1).
About this color
#CA210F is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.204 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.038 away. White text reads best on it, at 5.62:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.204) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.73:1 |
| White text | 5.62:1 |
Values
| HEX | #CA210F |
| RGB | rgb(202, 33, 15) |
| HSL | hsl(6, 86%, 43%) |
| OKLCH | oklch(53.9% 0.204 30.4) |
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 #CA210F | 5.62:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #CA210F | 3.73:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #CA210F text on white | 5.62:1 | AA | Lc 76.1 | Fine for body text |
| #CA210F text on black | 3.73:1 | AA large text | Lc -25.6 | 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
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F9CDC5
oklch(88.4% 0.051 30.1)
-
Step 300
300
#F6AB9D
oklch(81% 0.091 30.9)
-
Step 400
400
#EE7A67
oklch(70.8% 0.147 30.7)
-
Step 500
500
#E4503D
oklch(63% 0.187 30.3)
-
Step 600
600 (this color)
#CA210F
oklch(53.9% 0.204 30.4)
-
Step 700
700
#B31706
oklch(49% 0.19 30.4)
-
Step 800
800
#92190C
oklch(42.7% 0.158 30.4)
-
Step 900
900
#751E14
oklch(37.7% 0.123 30.2)
-
Step 950
950
#45140D
oklch(27.1% 0.077 30.8)
#CA210F 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) | #5B5007 | 0.221 |
| Deuteranopia (no green cones) | #847400 | 0.197 |
| Tritanopia (no blue cones) | #DF0020 | 0.044 |
| Achromatopsia (no color) | #676767 | 0.206 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA210F
#CA210F
oklch(53.9% 0.204 30.4)
- #007D8D
#007D8D
oklch(54% 0.094 210.3)
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 #CA210F, closest first.
No curated palette has a color within ΔE 0.04 of #CA210F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.038
- Cherry #CF0234 ΔE 0.039
- Sinopia #BB3E03 ΔE 0.044
- Lipstick Red #C0022F ΔE 0.045
- Dull Red #BB3F3F ΔE 0.049
- Firebrick #B22222 ΔE 0.051
- Crimson #DC143C ΔE 0.053
- Rusty Red #AF2F0D ΔE 0.053
Use #CA210F 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.