#FF644A#FF644A

#FF644A is a light, vivid red. Relative luminance 0.309; OKLCH L 69.8% C 0.194 H 31.8°. Best body text is #000000 at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#FF644A
RGB	rgb(255, 100, 74)
HSL	hsl(9, 100%, 65%)
HSV	hsv(9, 71%, 100%)
CMYK	cmyk(0%, 60.8%, 71%, 0%)
CIE-LAB	lab(62.40, 57.55, 45.06)
CIE-LCH	lch(62.40, 73.10, 38.06°)
OKLab	oklab(69.78% 0.1649 0.1022)
OKLCH	oklch(69.78% 0.194 31.8)
XYZ	xyz(47.0381, 30.8753, 9.9599)
Luminance	0.3087 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF644A #4AE5FF

analogous

#FF4A8A #FF644A #FFBF4A

triadic

#FF644A #4AFF64 #644AFF

tetradic

#FF644A #8AFF4A #4AE5FF #BF4AFF

square

#FF644A #8AFF4A #4AE5FF #BF4AFF

split-complementary

#FF644A #4AFFBF #4A8AFF

monochromatic

#CF1E00 #FF300D #FF644A #FF9887 #FFCDC4

Accessibility & contrast

On white

2.93

#FF644A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.17

#FF644A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FF644A

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF644A	#FFFFFF	#000000	##000000
##FF644A	1.00	2.93	7.17	7.17
#FFFFFF	2.93	1.00	21.00	21.00
#000000	7.17	21.00	1.00	1.00
##000000	7.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E8246

Deuteranopia (green-blind)

#B5A445

Tritanopia (blue-blind)

#FF3F5F

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #ff644a;
/* rgb */ color: rgb(255, 100, 74);
/* oklch */ color: oklch(69.8% 0.194 31.8);

Tailwind

colors: {
  custom: {
    50: '#ff967e',
    500: '#ff644a',
    950: '#000000',
  },
}

SCSS

$custom: #ff644a;
$custom-light: #ff967e;
$custom-dark: #000000;

JSON

{
  "hex": "#ff644a",
  "rgb": {
    "r": 255,
    "g": 100,
    "b": 74
  },
  "hsl": {
    "h": 8.619,
    "s": 100,
    "l": 64.51
  },
  "oklch": {
    "l": 0.6978,
    "c": 0.19396,
    "h": 31.8
  },
  "luminance": 0.30869
}

Semantic roles & 50–950 ramp

primary

#FF644A

secondary

#B3E9F2

accent

#C5E600

background

#FFF9F7

surface

#FFF2EE

border

#D7CCC9

text

#1A0E0A

muted

#877E7C

Preview Lab

Preview with #FF644A

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

Preview Lab → · Contrast checker → · Palette generator →