#E23731#E23731

#E23731 is a mid, highly saturated red. Relative luminance 0.191; OKLCH L 60.1% C 0.208 H 27.6°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#E23731
RGB	rgb(226, 55, 49)
HSL	hsl(2, 75%, 54%)
HSV	hsv(2, 78%, 89%)
CMYK	cmyk(0%, 75.7%, 78.3%, 11.4%)
CIE-LAB	lab(50.84, 64.35, 44.37)
CIE-LCH	lch(50.84, 78.16, 34.58°)
OKLab	oklab(60.1% 0.1845 0.0965)
OKLCH	oklch(60.1% 0.208 27.6)
XYZ	xyz(33.2886, 19.1282, 4.8445)
Luminance	0.1912 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E23731 #31DCE2

analogous

#E23184 #E23731 #E29031

triadic

#E23731 #31E237 #3731E2

tetradic

#E23731 #84E231 #31DCE2 #9031E2

square

#E23731 #84E231 #31DCE2 #9031E2

split-complementary

#E23731 #31E290 #3184E2

monochromatic

#861713 #BB201A #E23731 #EA6B67 #F19F9C

Accessibility & contrast

On white

4.35

#E23731 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#E23731 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #E23731

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E23731	#FFFFFF	#000000	##000000
##E23731	1.00	4.35	4.82	4.82
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C612E

Deuteranopia (green-blind)

#968629

Tritanopia (blue-blind)

#F90038

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #e23731;
/* rgb */ color: rgb(226, 55, 49);
/* oklch */ color: oklch(60.1% 0.208 27.6);

Tailwind

colors: {
  custom: {
    50: '#f57c6a',
    500: '#e23731',
    950: '#000000',
  },
}

SCSS

$custom: #e23731;
$custom-light: #f57c6a;
$custom-dark: #000000;

JSON

{
  "hex": "#e23731",
  "rgb": {
    "r": 226,
    "g": 55,
    "b": 49
  },
  "hsl": {
    "h": 2.034,
    "s": 75.319,
    "l": 53.922
  },
  "oklch": {
    "l": 0.60099,
    "c": 0.20816,
    "h": 27.6
  },
  "luminance": 0.19123
}

Semantic roles & 50–950 ramp

primary

#E23731

secondary

#92DBDD

accent

#ECF236

background

#FFF8F6

surface

#FFEFEB

border

#D7CAC6

text

#190A06

muted

#867C7A

Preview Lab

Preview with #E23731

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

Preview Lab → · Contrast checker → · Palette generator →