#E0403A#E0403A

#E0403A is a mid, vivid red. Relative luminance 0.198; OKLCH L 60.7% C 0.198 H 27.1°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#E0403A
RGB	rgb(224, 64, 58)
HSL	hsl(2, 73%, 55%)
HSV	hsv(2, 74%, 88%)
CMYK	cmyk(0%, 71.4%, 74.1%, 12.2%)
CIE-LAB	lab(51.64, 61.08, 40.20)
CIE-LCH	lch(51.64, 73.13, 33.35°)
OKLab	oklab(60.66% 0.1762 0.09)
OKLCH	oklch(60.66% 0.198 27.1)
XYZ	xyz(33.3414, 19.8247, 6.0731)
Luminance	0.1982 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E0403A #3ADAE0

analogous

#E03A87 #E0403A #E0933A

triadic

#E0403A #3AE040 #403AE0

tetradic

#E0403A #87E03A #3ADAE0 #933AE0

square

#E0403A #87E03A #3ADAE0 #933AE0

split-complementary

#E0403A #3AE093 #3A87E0

monochromatic

#8A1A16 #BF241E #E0403A #E8736F #F1A7A4

Accessibility & contrast

On white

4.23

#E0403A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#E0403A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #E0403A

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E0403A	#FFFFFF	#000000	##000000
##E0403A	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F6538

Deuteranopia (green-blind)

#978834

Tritanopia (blue-blind)

#F60040

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #e0403a;
/* rgb */ color: rgb(224, 64, 58);
/* oklch */ color: oklch(60.7% 0.198 27.1);

Tailwind

colors: {
  custom: {
    50: '#f37f71',
    500: '#e0403a',
    950: '#000000',
  },
}

SCSS

$custom: #e0403a;
$custom-light: #f37f71;
$custom-dark: #000000;

JSON

{
  "hex": "#e0403a",
  "rgb": {
    "r": 224,
    "g": 64,
    "b": 58
  },
  "hsl": {
    "h": 2.169,
    "s": 72.807,
    "l": 55.294
  },
  "oklch": {
    "l": 0.6066,
    "c": 0.19785,
    "h": 27.1
  },
  "luminance": 0.1982
}

Semantic roles & 50–950 ramp

primary

#E0403A

secondary

#98DBDE

accent

#E9EF38

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#190B07

muted

#867C7A

Preview Lab

Preview with #E0403A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →