#FF644C#FF644C

#FF644C is a light, vivid red. Relative luminance 0.309; OKLCH L 69.8% C 0.194 H 31.2°. Best body text is #000000 at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#FF644C
RGB	rgb(255, 100, 76)
HSL	hsl(8, 100%, 65%)
HSV	hsv(8, 70%, 100%)
CMYK	cmyk(0%, 60.8%, 70.2%, 0%)
CIE-LAB	lab(62.43, 57.65, 44.03)
CIE-LCH	lch(62.43, 72.54, 37.37°)
OKLab	oklab(69.8% 0.1655 0.1003)
OKLCH	oklch(69.8% 0.194 31.2)
XYZ	xyz(47.1066, 30.9026, 10.3204)
Luminance	0.3090 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF644C #4CE7FF

analogous

#FF4C8D #FF644C #FFBE4C

triadic

#FF644C #4CFF64 #644CFF

tetradic

#FF644C #8DFF4C #4CE7FF #BE4CFF

square

#FF644C #8DFF4C #4CE7FF #BE4CFF

split-complementary

#FF644C #4CFFBE #4C8DFF

monochromatic

#D11C00 #FF2F0F #FF644C #FF9989 #FFCEC6

Accessibility & contrast

On white

2.93

#FF644C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.18

#FF644C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FF644C

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF644C	#FFFFFF	#000000	##000000
##FF644C	1.00	2.93	7.18	7.18
#FFFFFF	2.93	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)

#8E8249

Deuteranopia (green-blind)

#B5A447

Tritanopia (blue-blind)

#FF405F

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #ff644c;
/* rgb */ color: rgb(255, 100, 76);
/* oklch */ color: oklch(69.8% 0.194 31.2);

Tailwind

colors: {
  custom: {
    50: '#ff967f',
    500: '#ff644c',
    950: '#000000',
  },
}

SCSS

$custom: #ff644c;
$custom-light: #ff967f;
$custom-dark: #000000;

JSON

{
  "hex": "#ff644c",
  "rgb": {
    "r": 255,
    "g": 100,
    "b": 76
  },
  "hsl": {
    "h": 8.045,
    "s": 100,
    "l": 64.902
  },
  "oklch": {
    "l": 0.69805,
    "c": 0.19355,
    "h": 31.2
  },
  "luminance": 0.30896
}

Semantic roles & 50–950 ramp

primary

#FF644C

secondary

#B5EAF2

accent

#C7E600

background

#FFF9F7

surface

#FFF2EE

border

#D7CCC9

text

#1A0E0A

muted

#877E7C

Preview Lab

Preview with #FF644C

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

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