#E03151
Closest named color: Imperial Red (#E63946). oklch(59.7% 0.209 16.8), rgb(224, 49, 81).
Aa
Black text reads best on this color (4.72:1).
About this color
#E03151 is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.209 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.025 away. Black text reads best on it, at 4.72:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.209) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #E03151 |
| RGB | rgb(224, 49, 81) |
| HSL | hsl(349, 74%, 54%) |
| OKLCH | oklch(59.7% 0.209 16.8) |
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 #E03151 | 4.44:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #E03151 | 4.72:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #E03151 text on white | 4.44:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #E03151 text on black | 4.72:1 | AA | Lc -32.4 | 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 500.
-
Step 50
50
#FFF2F2
oklch(97.1% 0.014 17.4)
-
Step 100
100
#FDE2E3
oklch(93.5% 0.03 15.1)
-
Step 200
200
#FDCBCC
oklch(88.6% 0.057 16.9)
-
Step 300
300
#FBA6A9
oklch(80.9% 0.101 17.2)
-
Step 400
400
#F5707C
oklch(70.7% 0.163 16.7)
-
Step 500
500 (this color)
#E03151
oklch(59.7% 0.209 16.8)
-
Step 600
600
#D60042
oklch(55.6% 0.222 16.7)
-
Step 700
700
#B50036
oklch(49.1% 0.196 16.9)
-
Step 800
800
#96002B
oklch(42.7% 0.171 17)
-
Step 900
900
#791226
oklch(37.6% 0.136 17)
-
Step 950
950
#480E17
oklch(27.1% 0.087 16.6)
#E03151 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) | #656051 | 0.231 |
| Deuteranopia (no green cones) | #91854C | 0.212 |
| Tritanopia (no blue cones) | #F6003F | 0.045 |
| Achromatopsia (no color) | #787878 | 0.210 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E03151
#E03151
oklch(59.7% 0.209 16.8)
- #009294
#009294
oklch(59.8% 0.102 196.5)
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 #E03151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.025
- Crimson #DC143C ΔE 0.032
- Red Pantone #EF233C ΔE 0.035
- Lipstick #D5174E ΔE 0.037
- Faded Red #D3494E ΔE 0.039
- Pink Red #F5054F ΔE 0.042
- Cerise #DE0C62 ΔE 0.045
- Red Pink #FA2A55 ΔE 0.050
Use #E03151 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.