#E21A4D
Closest named color: Crimson (#DC143C). oklch(58.7% 0.224 15.8), rgb(226, 26, 77).
Aa
White text reads best on this color (4.67:1).
About this color
#E21A4D is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.224 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.023 away. White text reads best on it, at 4.67:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.224) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.48:1 |
| White text | 4.67:1 |
Values
| HEX | #E21A4D |
| RGB | rgb(226, 26, 77) |
| HSL | hsl(345, 79%, 49%) |
| OKLCH | oklch(58.7% 0.224 15.8) |
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 #E21A4D | 4.67:1 | AA | Lc -75.8 | Fine for body text |
| Black text on #E21A4D | 4.48:1 | AA large text | Lc 33.8 | Non-text elements, placeholder text |
| #E21A4D text on white | 4.67:1 | AA | Lc 70.3 | Content text, not long reading |
| #E21A4D text on black | 4.48:1 | AA large text | Lc -31.4 | Non-text elements, placeholder text |
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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FDE2E3
oklch(93.5% 0.03 15.1)
-
Step 200
200
#FCCBCD
oklch(88.5% 0.056 15.5)
-
Step 300
300
#FBA6AB
oklch(81% 0.101 15.7)
-
Step 400
400
#F4717E
oklch(70.8% 0.161 16)
-
Step 500
500
#EB405E
oklch(63.1% 0.206 15.7)
-
Step 600
600 (this color)
#E21A4D
oklch(58.7% 0.224 15.8)
-
Step 700
700
#B50039
oklch(49.1% 0.196 15.7)
-
Step 800
800
#96002D
oklch(42.7% 0.171 16.1)
-
Step 900
900
#791328
oklch(37.8% 0.135 16.1)
-
Step 950
950
#470F18
oklch(27% 0.084 15.8)
#E21A4D 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) | #5E5A4D | 0.251 |
| Deuteranopia (no green cones) | #8E8247 | 0.229 |
| Tritanopia (no blue cones) | #F80033 | 0.050 |
| Achromatopsia (no color) | #747474 | 0.226 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E21A4D
#E21A4D
oklch(58.7% 0.224 15.8)
- #008E90
#008E90
oklch(58.6% 0.1 196.5)
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 #E21A4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.023
- Lipstick #D5174E ΔE 0.028
- Cerise #DE0C62 ΔE 0.035
- Pink Red #F5054F ΔE 0.036
- Red Pantone #EF233C ΔE 0.037
- Imperial Red #E63946 ΔE 0.038
- Dark Hot Pink #D90166 ΔE 0.048
- Cherry #CF0234 ΔE 0.050
Use #E21A4D 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.