#E3603F#E3603F

#E3603F is a light, vivid red. Relative luminance 0.251; OKLCH L 64.9% C 0.171 H 35.3°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#E3603F
RGB	rgb(227, 96, 63)
HSL	hsl(12, 75%, 57%)
HSV	hsv(12, 72%, 89%)
CMYK	cmyk(0%, 57.7%, 72.2%, 11%)
CIE-LAB	lab(57.13, 49.07, 43.74)
CIE-LCH	lch(57.13, 65.73, 41.71°)
OKLab	oklab(64.91% 0.1393 0.0986)
OKLCH	oklch(64.91% 0.171 35.3)
XYZ	xyz(36.7624, 25.0604, 7.6030)
Luminance	0.2506 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E3603F #3FC2E3

analogous

#E33F70 #E3603F #E3B23F

triadic

#E3603F #3FE360 #603FE3

tetradic

#E3603F #70E33F #3FC2E3 #B23FE3

square

#E3603F #70E33F #3FC2E3 #B23FE3

split-complementary

#E3603F #3FE3B2 #3F70E3

monochromatic

#922E15 #C83F1D #E3603F #EB8C74 #F3B8AA

Accessibility & contrast

On white

3.49

#E3603F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#E3603F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #E3603F

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E3603F	#FFFFFF	#000000	##000000
##E3603F	1.00	3.49	6.01	6.01
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#84773B

Deuteranopia (green-blind)

#A4943B

Tritanopia (blue-blind)

#F94359

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #e3603f;
/* rgb */ color: rgb(227, 96, 63);
/* oklch */ color: oklch(64.9% 0.171 35.3);

Tailwind

colors: {
  custom: {
    50: '#f39175',
    500: '#e3603f',
    950: '#000000',
  },
}

SCSS

$custom: #e3603f;
$custom-light: #f39175;
$custom-dark: #000000;

JSON

{
  "hex": "#e3603f",
  "rgb": {
    "r": 227,
    "g": 96,
    "b": 63
  },
  "hsl": {
    "h": 12.073,
    "s": 74.545,
    "l": 56.863
  },
  "oklch": {
    "l": 0.64905,
    "c": 0.17067,
    "h": 35.3
  },
  "luminance": 0.25056
}

Semantic roles & 50–950 ramp

primary

#E3603F

secondary

#9DD3E0

accent

#CCF137

background

#FFF9F7

surface

#FFF1ED

border

#D7CBC8

text

#180D08

muted

#867E7B

Preview Lab

Preview with #E3603F

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

Preview Lab → · Contrast checker → · Palette generator →