#EF645B#EF645B

#EF645B is a light, vivid red. Relative luminance 0.282; OKLCH L 67.6% C 0.174 H 26.4°. Best body text is #000000 at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#EF645B
RGB	rgb(239, 100, 91)
HSL	hsl(4, 82%, 65%)
HSV	hsv(4, 62%, 94%)
CMYK	cmyk(0%, 58.2%, 61.9%, 6.3%)
CIE-LAB	lab(60.09, 52.99, 32.39)
CIE-LCH	lch(60.09, 62.11, 31.43°)
OKLab	oklab(67.62% 0.1554 0.0773)
OKLCH	oklch(67.62% 0.174 26.4)
XYZ	xyz(42.0460, 28.2258, 13.1295)
Luminance	0.2822 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EF645B #5BE6EF

analogous

#EF5B9C #EF645B #EFAE5B

triadic

#EF645B #5BEF64 #645BEF

tetradic

#EF645B #9CEF5B #5BE6EF #AE5BEF

square

#EF645B #9CEF5B #5BE6EF #AE5BEF

split-complementary

#EF645B #5BEFAE #5B9CEF

monochromatic

#BD1D12 #EA2F23 #EF645B #F49993 #FACDCB

Accessibility & contrast

On white

3.16

#EF645B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.64

#EF645B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #EF645B

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EF645B	#FFFFFF	#000000	##000000
##EF645B	1.00	3.16	6.64	6.64
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.64	21.00	1.00	1.00
##000000	6.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#877E59

Deuteranopia (green-blind)

#AA9C58

Tritanopia (blue-blind)

#FF4963

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #ef645b;
/* rgb */ color: rgb(239, 100, 91);
/* oklch */ color: oklch(67.6% 0.174 26.4);

Tailwind

colors: {
  custom: {
    50: '#fb9589',
    500: '#ef645b',
    950: '#000000',
  },
}

SCSS

$custom: #ef645b;
$custom-light: #fb9589;
$custom-dark: #000000;

JSON

{
  "hex": "#ef645b",
  "rgb": {
    "r": 239,
    "g": 100,
    "b": 91
  },
  "hsl": {
    "h": 3.649,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.67624,
    "c": 0.17356,
    "h": 26.4
  },
  "luminance": 0.2822
}

Semantic roles & 50–950 ramp

primary

#EF645B

secondary

#BAE9EC

accent

#D1DF07

background

#FFF9F8

surface

#FFF2F0

border

#D7CCCB

text

#190E0B

muted

#877E7C

Preview Lab

Preview with #EF645B

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

Preview Lab → · Contrast checker → · Palette generator →