#EF664B#EF664B

#EF664B is a light, vivid red. Relative luminance 0.284; OKLCH L 67.6% C 0.175 H 32.9°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#EF664B
RGB	rgb(239, 102, 75)
HSL	hsl(10, 84%, 62%)
HSV	hsv(10, 69%, 94%)
CMYK	cmyk(0%, 57.3%, 68.6%, 6.3%)
CIE-LAB	lab(60.22, 51.16, 41.36)
CIE-LCH	lch(60.22, 65.79, 38.95°)
OKLab	oklab(67.65% 0.1468 0.0951)
OKLCH	oklch(67.65% 0.175 32.9)
XYZ	xyz(41.6221, 28.3669, 9.9389)
Luminance	0.2836 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EF664B #4BD4EF

analogous

#EF4B82 #EF664B #EFB84B

triadic

#EF664B #4BEF66 #664BEF

tetradic

#EF664B #82EF4B #4BD4EF #B84BEF

square

#EF664B #82EF4B #4BD4EF #B84BEF

split-complementary

#EF664B #4BEFB8 #4B82EF

monochromatic

#B02A10 #E83715 #EF664B #F49683 #F9C6BB

Accessibility & contrast

On white

3.15

#EF664B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#EF664B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #EF664B

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EF664B	#FFFFFF	#000000	##000000
##EF664B	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7E48

Deuteranopia (green-blind)

#AD9C47

Tritanopia (blue-blind)

#FF4960

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #ef664b;
/* rgb */ color: rgb(239, 102, 75);
/* oklch */ color: oklch(67.6% 0.175 32.9);

Tailwind

colors: {
  custom: {
    50: '#fc967e',
    500: '#ef664b',
    950: '#000000',
  },
}

SCSS

$custom: #ef664b;
$custom-light: #fc967e;
$custom-dark: #000000;

JSON

{
  "hex": "#ef664b",
  "rgb": {
    "r": 239,
    "g": 102,
    "b": 75
  },
  "hsl": {
    "h": 9.878,
    "s": 83.673,
    "l": 61.569
  },
  "oklch": {
    "l": 0.67649,
    "c": 0.17491,
    "h": 32.9
  },
  "luminance": 0.28361
}

Semantic roles & 50–950 ramp

primary

#EF664B

secondary

#ACDFE9

accent

#BCE005

background

#FFF9F7

surface

#FFF2EE

border

#D7CCC9

text

#190E0A

muted

#877E7C

Preview Lab

Preview with #EF664B

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

Preview Lab → · Contrast checker → · Palette generator →