#E03A37#E03A37

#E03A37 is a mid, highly saturated red. Relative luminance 0.191; OKLCH L 60.1% C 0.203 H 26.6°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#E03A37
RGB	rgb(224, 58, 55)
HSL	hsl(1, 73%, 55%)
HSV	hsv(1, 75%, 88%)
CMYK	cmyk(0%, 74.1%, 75.4%, 12.2%)
CIE-LAB	lab(50.87, 63.01, 41.02)
CIE-LCH	lch(50.87, 75.19, 33.06°)
OKLab	oklab(60.07% 0.1817 0.091)
OKLCH	oklch(60.07% 0.203 26.6)
XYZ	xyz(32.9470, 19.1544, 5.5761)
Luminance	0.1915 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E03A37 #37DDE0

analogous

#E03789 #E03A37 #E08F37

triadic

#E03A37 #37E03A #3A37E0

tetradic

#E03A37 #89E037 #37DDE0 #8F37E0

square

#E03A37 #89E037 #37DDE0 #8F37E0

split-complementary

#E03A37 #37E08F #3789E0

monochromatic

#881715 #BD201D #E03A37 #E86E6C #F0A2A1

Accessibility & contrast

On white

4.35

#E03A37 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#E03A37 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #E03A37

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E03A37	#FFFFFF	#000000	##000000
##E03A37	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C6235

Deuteranopia (green-blind)

#958630

Tritanopia (blue-blind)

#F6003B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #e03a37;
/* rgb */ color: rgb(224, 58, 55);
/* oklch */ color: oklch(60.1% 0.203 26.6);

Tailwind

colors: {
  custom: {
    50: '#f37d6e',
    500: '#e03a37',
    950: '#000000',
  },
}

SCSS

$custom: #e03a37;
$custom-light: #f37d6e;
$custom-dark: #000000;

JSON

{
  "hex": "#e03a37",
  "rgb": {
    "r": 224,
    "g": 58,
    "b": 55
  },
  "hsl": {
    "h": 1.065,
    "s": 73.16,
    "l": 54.706
  },
  "oklch": {
    "l": 0.60074,
    "c": 0.2032,
    "h": 26.6
  },
  "luminance": 0.19149
}

Semantic roles & 50–950 ramp

primary

#E03A37

secondary

#96DCDD

accent

#EDF038

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#190B07

muted

#867C7A

Preview Lab

Preview with #E03A37

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

Preview Lab → · Contrast checker → · Palette generator →