#FF644E#FF644E

#FF644E is a light, vivid red. Relative luminance 0.309; OKLCH L 69.8% C 0.193 H 30.6°. Best body text is #000000 at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#FF644E
RGB	rgb(255, 100, 78)
HSL	hsl(7, 100%, 65%)
HSV	hsv(7, 69%, 100%)
CMYK	cmyk(0%, 60.8%, 69.4%, 0%)
CIE-LAB	lab(62.45, 57.74, 42.99)
CIE-LCH	lch(62.45, 71.98, 36.67°)
OKLab	oklab(69.83% 0.1662 0.0984)
OKLCH	oklch(69.83% 0.193 30.6)
XYZ	xyz(47.1772, 30.9309, 10.6923)
Luminance	0.3092 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF644E #4EE9FF

analogous

#FF4E90 #FF644E #FFBD4E

triadic

#FF644E #4EFF64 #644EFF

tetradic

#FF644E #90FF4E #4EE9FF #BD4EFF

square

#FF644E #90FF4E #4EE9FF #BD4EFF

split-complementary

#FF644E #4EFFBD #4E90FF

monochromatic

#D31A00 #FF2E11 #FF644E #FF9A8B #FFCFC8

Accessibility & contrast

On white

2.92

#FF644E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.18

#FF644E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FF644E

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF644E	#FFFFFF	#000000	##000000
##FF644E	1.00	2.92	7.18	7.18
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.18	21.00	1.00	1.00
##000000	7.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E824B

Deuteranopia (green-blind)

#B5A449

Tritanopia (blue-blind)

#FF4060

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #ff644e;
/* rgb */ color: rgb(255, 100, 78);
/* oklch */ color: oklch(69.8% 0.193 30.6);

Tailwind

colors: {
  custom: {
    50: '#ff9680',
    500: '#ff644e',
    950: '#000000',
  },
}

SCSS

$custom: #ff644e;
$custom-light: #ff9680;
$custom-dark: #000000;

JSON

{
  "hex": "#ff644e",
  "rgb": {
    "r": 255,
    "g": 100,
    "b": 78
  },
  "hsl": {
    "h": 7.458,
    "s": 100,
    "l": 65.294
  },
  "oklch": {
    "l": 0.6983,
    "c": 0.19314,
    "h": 30.6
  },
  "luminance": 0.30924
}

Semantic roles & 50–950 ramp

primary

#FF644E

secondary

#B7EBF2

accent

#C9E600

background

#FFF9F7

surface

#FFF2EE

border

#D7CCC9

text

#1A0E0A

muted

#877E7C

Preview Lab

Preview with #FF644E

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

Preview Lab → · Contrast checker → · Palette generator →