#EF555B#EF555B

#EF555B is a light, vivid red. Relative luminance 0.256; OKLCH L 65.8% C 0.189 H 21.8°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#EF555B
RGB	rgb(239, 85, 91)
HSL	hsl(358, 83%, 64%)
HSV	hsv(358, 64%, 94%)
CMYK	cmyk(0%, 64.4%, 61.9%, 6.3%)
CIE-LAB	lab(57.66, 59.47, 29.30)
CIE-LCH	lch(57.66, 66.30, 26.23°)
OKLab	oklab(65.8% 0.1758 0.0703)
OKLCH	oklch(65.8% 0.189 21.8)
XYZ	xyz(40.7374, 25.6086, 12.6933)
Luminance	0.2560 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EF555B #55EFE9

analogous

#EF55A8 #EF555B #EF9C55

triadic

#EF555B #5BEF55 #555BEF

tetradic

#EF555B #A8EF55 #55EFE9 #9C55EF

square

#EF555B #A8EF55 #55EFE9 #9C55EF

split-complementary

#EF555B #55EF9C #55A8EF

monochromatic

#B81118 #EA1D25 #EF555B #F48D91 #FAC5C7

Accessibility & contrast

On white

3.43

#EF555B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#EF555B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #EF555B

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EF555B	#FFFFFF	#000000	##000000
##EF555B	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D765A

Deuteranopia (green-blind)

#A49757

Tritanopia (blue-blind)

#FF3258

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #ef555b;
/* rgb */ color: rgb(239, 85, 91);
/* oklch */ color: oklch(65.8% 0.189 21.8);

Tailwind

colors: {
  custom: {
    50: '#fb8c89',
    500: '#ef555b',
    950: '#000000',
  },
}

SCSS

$custom: #ef555b;
$custom-light: #fb8c89;
$custom-dark: #000000;

JSON

{
  "hex": "#ef555b",
  "rgb": {
    "r": 239,
    "g": 85,
    "b": 91
  },
  "hsl": {
    "h": 357.662,
    "s": 82.796,
    "l": 63.529
  },
  "oklch": {
    "l": 0.65799,
    "c": 0.18935,
    "h": 21.8
  },
  "luminance": 0.25603
}

Semantic roles & 50–950 ramp

primary

#EF555B

secondary

#B5EBE9

accent

#DFD706

background

#FFF9F8

surface

#FFF1F0

border

#D7CBCB

text

#190D0B

muted

#877E7C

Preview Lab

Preview with #EF555B

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

Preview Lab → · Contrast checker → · Palette generator →