#EF5543#EF5543

#EF5543 is a light, vivid red. Relative luminance 0.253; OKLCH L 65.4% C 0.193 H 29.8°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#EF5543
RGB	rgb(239, 85, 67)
HSL	hsl(6, 84%, 60%)
HSV	hsv(6, 72%, 94%)
CMYK	cmyk(0%, 64.4%, 72%, 6.3%)
CIE-LAB	lab(57.33, 58.20, 42.36)
CIE-LCH	lch(57.33, 71.99, 36.05°)
OKLab	oklab(65.44% 0.1673 0.0958)
OKLCH	oklch(65.44% 0.193 29.8)
XYZ	xyz(39.8625, 25.2587, 8.0855)
Luminance	0.2525 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EF5543 #43DDEF

analogous

#EF4387 #EF5543 #EFAB43

triadic

#EF5543 #43EF55 #5543EF

tetradic

#EF5543 #87EF43 #43DDEF #AB43EF

square

#EF5543 #87EF43 #43DDEF #AB43EF

split-complementary

#EF5543 #43EFAB #4387EF

monochromatic

#A91F0E #E22913 #EF5543 #F4887B #F9BBB4

Accessibility & contrast

On white

3.47

#EF5543 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#EF5543 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #EF5543

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EF5543	#FFFFFF	#000000	##000000
##EF5543	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#807440

Deuteranopia (green-blind)

#A6963E

Tritanopia (blue-blind)

#FF2C52

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #ef5543;
/* rgb */ color: rgb(239, 85, 67);
/* oklch */ color: oklch(65.4% 0.193 29.8);

Tailwind

colors: {
  custom: {
    50: '#fd8c78',
    500: '#ef5543',
    950: '#000000',
  },
}

SCSS

$custom: #ef5543;
$custom-light: #fd8c78;
$custom-dark: #000000;

JSON

{
  "hex": "#ef5543",
  "rgb": {
    "r": 239,
    "g": 85,
    "b": 67
  },
  "hsl": {
    "h": 6.279,
    "s": 84.314,
    "l": 60
  },
  "oklch": {
    "l": 0.65438,
    "c": 0.19274,
    "h": 29.8
  },
  "luminance": 0.25253
}

Semantic roles & 50–950 ramp

primary

#EF5543

secondary

#A6E1E8

accent

#E5FB2D

background

#FFF8F7

surface

#FFF0ED

border

#D7CBC8

text

#190D09

muted

#867D7B

Preview Lab

Preview with #EF5543

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

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