#E03B37#E03B37

#E03B37 is a mid, highly saturated red. Relative luminance 0.193; OKLCH L 60.2% C 0.202 H 26.8°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#E03B37
RGB	rgb(224, 59, 55)
HSL	hsl(1, 73%, 55%)
HSV	hsv(1, 75%, 88%)
CMYK	cmyk(0%, 73.7%, 75.4%, 12.2%)
CIE-LAB	lab(50.99, 62.68, 41.15)
CIE-LCH	lch(50.99, 74.98, 33.28°)
OKLab	oklab(60.16% 0.1806 0.0913)
OKLCH	oklch(60.16% 0.202 26.8)
XYZ	xyz(32.9979, 19.2562, 5.5930)
Luminance	0.1925 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E03B37 #37DCE0

analogous

#E03788 #E03B37 #E08F37

triadic

#E03B37 #37E03B #3B37E0

tetradic

#E03B37 #88E037 #37DCE0 #8F37E0

square

#E03B37 #88E037 #37DCE0 #8F37E0

split-complementary

#E03B37 #37E08F #3788E0

monochromatic

#881815 #BD211D #E03B37 #E86F6C #F0A3A1

Accessibility & contrast

On white

4.33

#E03B37 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#E03B37 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #E03B37

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E03B37	#FFFFFF	#000000	##000000
##E03B37	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D6335

Deuteranopia (green-blind)

#958630

Tritanopia (blue-blind)

#F6003C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #e03b37;
/* rgb */ color: rgb(224, 59, 55);
/* oklch */ color: oklch(60.2% 0.202 26.8);

Tailwind

colors: {
  custom: {
    50: '#f37d6e',
    500: '#e03b37',
    950: '#000000',
  },
}

SCSS

$custom: #e03b37;
$custom-light: #f37d6e;
$custom-dark: #000000;

JSON

{
  "hex": "#e03b37",
  "rgb": {
    "r": 224,
    "g": 59,
    "b": 55
  },
  "hsl": {
    "h": 1.42,
    "s": 73.16,
    "l": 54.706
  },
  "oklch": {
    "l": 0.60162,
    "c": 0.20239,
    "h": 26.8
  },
  "luminance": 0.19251
}

Semantic roles & 50–950 ramp

primary

#E03B37

secondary

#96DBDD

accent

#EBF038

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#190B07

muted

#867C7A

Preview Lab

Preview with #E03B37

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

Preview Lab → · Contrast checker → · Palette generator →