#FF636B#FF636B

#FF636B is a light, vivid red. Relative luminance 0.312; OKLCH L 70.2% C 0.190 H 20.5°. Best body text is #000000 at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#FF636B
RGB	rgb(255, 99, 107)
HSL	hsl(357, 100%, 69%)
HSV	hsv(357, 61%, 100%)
CMYK	cmyk(0%, 61.2%, 58%, 0%)
CIE-LAB	lab(62.72, 59.86, 27.21)
CIE-LCH	lch(62.72, 65.75, 24.44°)
OKLab	oklab(70.17% 0.178 0.0664)
OKLCH	oklch(70.17% 0.19 20.5)
XYZ	xyz(48.3601, 31.2515, 17.3926)
Luminance	0.3125 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF636B #63FFF7

analogous

#FF63B9 #FF636B #FFA963

triadic

#FF636B #6BFF63 #636BFF

tetradic

#FF636B #B9FF63 #63FFF7 #A963FF

square

#FF636B #B9FF63 #63FFF7 #A963FF

split-complementary

#FF636B #63FFA9 #63B9FF

monochromatic

#E8000C #FF2631 #FF636B #FFA0A5 #FFDDDF

Accessibility & contrast

On white

2.90

#FF636B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.25

#FF636B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FF636B

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF636B	#FFFFFF	#000000	##000000
##FF636B	1.00	2.90	7.25	7.25
#FFFFFF	2.90	1.00	21.00	21.00
#000000	7.25	21.00	1.00	1.00
##000000	7.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A836A

Deuteranopia (green-blind)

#B1A467

Tritanopia (blue-blind)

#FF4567

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #ff636b;
/* rgb */ color: rgb(255, 99, 107);
/* oklch */ color: oklch(70.2% 0.190 20.5);

Tailwind

colors: {
  custom: {
    50: '#ff9695',
    500: '#ff636b',
    950: '#000000',
  },
}

SCSS

$custom: #ff636b;
$custom-light: #ff9695;
$custom-dark: #000000;

JSON

{
  "hex": "#ff636b",
  "rgb": {
    "r": 255,
    "g": 99,
    "b": 107
  },
  "hsl": {
    "h": 356.923,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.70173,
    "c": 0.18998,
    "h": 20.5
  },
  "luminance": 0.31245
}

Semantic roles & 50–950 ramp

primary

#FF636B

secondary

#C8F5F3

accent

#E6DA00

background

#FFF9F9

surface

#FFF2F1

border

#D7CCCB

text

#1A0E0D

muted

#877E7E

Preview Lab

Preview with #FF636B

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

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