#EF5555#EF5555

#EF5555 is a light, vivid red. Relative luminance 0.255; OKLCH L 65.7% C 0.190 H 24.0°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#EF5555
RGB	rgb(239, 85, 85)
HSL	hsl(0, 83%, 64%)
HSV	hsv(0, 64%, 94%)
CMYK	cmyk(0%, 64.4%, 64.4%, 6.3%)
CIE-LAB	lab(57.57, 59.11, 32.62)
CIE-LCH	lch(57.57, 67.51, 28.89°)
OKLab	oklab(65.7% 0.1736 0.0772)
OKLCH	oklch(65.7% 0.19 24)
XYZ	xyz(40.4889, 25.5092, 11.3843)
Luminance	0.2550 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EF5555 #55EFEF

analogous

#EF55A2 #EF5555 #EFA255

triadic

#EF5555 #55EF55 #5555EF

tetradic

#EF5555 #A2EF55 #55EFEF #A255EF

square

#EF5555 #A2EF55 #55EFEF #A255EF

split-complementary

#EF5555 #55EFA2 #55A2EF

monochromatic

#B81111 #EA1D1D #EF5555 #F48D8D #FAC5C5

Accessibility & contrast

On white

3.44

#EF5555 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#EF5555 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #EF5555

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EF5555	#FFFFFF	#000000	##000000
##EF5555	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E7554

Deuteranopia (green-blind)

#A59651

Tritanopia (blue-blind)

#FF3157

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #ef5555;
/* rgb */ color: rgb(239, 85, 85);
/* oklch */ color: oklch(65.7% 0.190 24.0);

Tailwind

colors: {
  custom: {
    50: '#fc8c85',
    500: '#ef5555',
    950: '#000000',
  },
}

SCSS

$custom: #ef5555;
$custom-light: #fc8c85;
$custom-dark: #000000;

JSON

{
  "hex": "#ef5555",
  "rgb": {
    "r": 239,
    "g": 85,
    "b": 85
  },
  "hsl": {
    "h": 0,
    "s": 82.796,
    "l": 63.529
  },
  "oklch": {
    "l": 0.65697,
    "c": 0.18996,
    "h": 24
  },
  "luminance": 0.25504
}

Semantic roles & 50–950 ramp

primary

#EF5555

secondary

#B5EBEB

accent

#DFDF06

background

#FFF9F8

surface

#FFF1EF

border

#D7CBCA

text

#190D0B

muted

#877E7C

Preview Lab

Preview with #EF5555

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

Preview Lab → · Contrast checker → · Palette generator →