#E23131#E23131

#E23131 is a mid, highly saturated red. Relative luminance 0.186; OKLCH L 59.6% C 0.212 H 26.6°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#E23131
RGB	rgb(226, 49, 49)
HSL	hsl(0, 75%, 54%)
HSV	hsv(0, 78%, 89%)
CMYK	cmyk(0%, 78.3%, 78.3%, 11.4%)
CIE-LAB	lab(50.21, 66.12, 43.72)
CIE-LCH	lch(50.21, 79.27, 33.47°)
OKLab	oklab(59.63% 0.19 0.0951)
OKLCH	oklch(59.63% 0.212 26.6)
XYZ	xyz(33.0207, 18.5924, 4.7552)
Luminance	0.1859 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E23131 #31E2E2

analogous

#E2318A #E23131 #E28A31

triadic

#E23131 #31E231 #3131E2

tetradic

#E23131 #8AE231 #31E2E2 #8A31E2

square

#E23131 #8AE231 #31E2E2 #8A31E2

split-complementary

#E23131 #31E28A #318AE2

monochromatic

#861313 #BB1A1A #E23131 #EA6767 #F19C9C

Accessibility & contrast

On white

4.45

#E23131 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#E23131 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #E23131

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E23131	#FFFFFF	#000000	##000000
##E23131	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#695F2F

Deuteranopia (green-blind)

#958529

Tritanopia (blue-blind)

#F90034

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #e23131;
/* rgb */ color: rgb(226, 49, 49);
/* oklch */ color: oklch(59.6% 0.212 26.6);

Tailwind

colors: {
  custom: {
    50: '#f5796a',
    500: '#e23131',
    950: '#000000',
  },
}

SCSS

$custom: #e23131;
$custom-light: #f5796a;
$custom-dark: #000000;

JSON

{
  "hex": "#e23131",
  "rgb": {
    "r": 226,
    "g": 49,
    "b": 49
  },
  "hsl": {
    "h": 0,
    "s": 75.319,
    "l": 53.922
  },
  "oklch": {
    "l": 0.5963,
    "c": 0.21247,
    "h": 26.6
  },
  "luminance": 0.18587
}

Semantic roles & 50–950 ramp

primary

#E23131

secondary

#92DDDD

accent

#F2F236

background

#FFF7F6

surface

#FFEEEB

border

#D7C9C6

text

#190A06

muted

#867C7A

Preview Lab

Preview with #E23131

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

Preview Lab → · Contrast checker → · Palette generator →