#E3274B
Closest named color: Crimson (#DC143C). oklch(59.5% 0.218 17.8), rgb(227, 39, 75).
Aa
Black text reads best on this color (4.65:1).
About this color
#E3274B is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.218 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.026 away. Black text reads best on it, at 4.65:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.218) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.65:1 |
| White text | 4.50:1 |
Values
| HEX | #E3274B |
| RGB | rgb(227, 39, 75) |
| HSL | hsl(349, 77%, 52%) |
| OKLCH | oklch(59.5% 0.218 17.8) |
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 #E3274B | 4.50:1 | AA | Lc -74.9 | Content text, not long reading |
| Black text on #E3274B | 4.65:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #E3274B text on white | 4.50:1 | AA | Lc 69.4 | Content text, not long reading |
| #E3274B text on black | 4.65:1 | AA | Lc -32.2 | 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 500.
-
Step 50
50
#FFF2F2
oklch(97.1% 0.014 17.4)
-
Step 100
100
#FEE2E2
oklch(93.6% 0.031 17.7)
-
Step 200
200
#FECACB
oklch(88.5% 0.059 17)
-
Step 300
300
#FEA4A7
oklch(80.9% 0.107 17.5)
-
Step 400
400
#F86D78
oklch(70.7% 0.17 17.7)
-
Step 500
500 (this color)
#E3274B
oklch(59.5% 0.218 17.8)
-
Step 600
600
#D6003F
oklch(55.5% 0.222 17.7)
-
Step 700
700
#B50034
oklch(49% 0.196 17.6)
-
Step 800
800
#960029
oklch(42.7% 0.171 17.8)
-
Step 900
900
#7C0C23
oklch(37.8% 0.142 18.1)
-
Step 950
950
#490C15
oklch(27% 0.09 17.9)
#E3274B 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) | #635E4B | 0.242 |
| Deuteranopia (no green cones) | #918445 | 0.221 |
| Tritanopia (no blue cones) | #F90038 | 0.044 |
| Achromatopsia (no color) | #777777 | 0.220 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3274B
#E3274B
oklch(59.5% 0.218 17.8)
- #009194
#009194
oklch(59.6% 0.101 197.4)
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 #E3274B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.026
- Imperial Red #E63946 ΔE 0.026
- Red Pantone #EF233C ΔE 0.029
- Pink Red #F5054F ΔE 0.035
- Lipstick #D5174E ΔE 0.036
- Cerise #DE0C62 ΔE 0.045
- Faded Red #D3494E ΔE 0.047
- Cherry Red #F7022A ΔE 0.047
Use #E3274B 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.