#EF5757#EF5757

#EF5757 is a light, vivid red. Relative luminance 0.259; OKLCH L 66.0% C 0.188 H 23.8°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#EF5757
RGB	rgb(239, 87, 87)
HSL	hsl(0, 83%, 64%)
HSV	hsv(0, 64%, 94%)
CMYK	cmyk(0%, 63.6%, 63.6%, 6.3%)
CIE-LAB	lab(57.90, 58.40, 31.90)
CIE-LCH	lch(57.90, 66.55, 28.65°)
OKLab	oklab(65.96% 0.1717 0.0758)
OKLCH	oklch(65.96% 0.188 23.8)
XYZ	xyz(40.7291, 25.8608, 11.8619)
Luminance	0.2586 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EF5757 #57EFEF

analogous

#EF57A3 #EF5757 #EFA357

triadic

#EF5757 #57EF57 #5757EF

tetradic

#EF5757 #A3EF57 #57EFEF #A357EF

square

#EF5757 #A3EF57 #57EFEF #A357EF

split-complementary

#EF5757 #57EFA3 #57A3EF

monochromatic

#BA1212 #EA1F1F #EF5757 #F48F8F #FAC7C7

Accessibility & contrast

On white

3.40

#EF5757 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.17

#EF5757 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #EF5757

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EF5757	#FFFFFF	#000000	##000000
##EF5757	1.00	3.40	6.17	6.17
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.17	21.00	1.00	1.00
##000000	6.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F7756

Deuteranopia (green-blind)

#A59753

Tritanopia (blue-blind)

#FF3559

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #ef5757;
/* rgb */ color: rgb(239, 87, 87);
/* oklch */ color: oklch(66.0% 0.188 23.8);

Tailwind

colors: {
  custom: {
    50: '#fc8d86',
    500: '#ef5757',
    950: '#000000',
  },
}

SCSS

$custom: #ef5757;
$custom-light: #fc8d86;
$custom-dark: #000000;

JSON

{
  "hex": "#ef5757",
  "rgb": {
    "r": 239,
    "g": 87,
    "b": 87
  },
  "hsl": {
    "h": 0,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.65959,
    "c": 0.1877,
    "h": 23.8
  },
  "luminance": 0.25855
}

Semantic roles & 50–950 ramp

primary

#EF5757

secondary

#B6ECEC

accent

#DFDF06

background

#FFF9F8

surface

#FFF1EF

border

#D7CBCA

text

#190D0B

muted

#877E7C

Preview Lab

Preview with #EF5757

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

Preview Lab → · Contrast checker → · Palette generator →