#FF645A#FF645A

#FF645A is a light, vivid red. Relative luminance 0.311; OKLCH L 70.0% C 0.191 H 26.8°. Best body text is #000000 at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#FF645A
RGB	rgb(255, 100, 90)
HSL	hsl(4, 100%, 68%)
HSV	hsv(4, 65%, 100%)
CMYK	cmyk(0%, 60.8%, 64.7%, 0%)
CIE-LAB	lab(62.61, 58.37, 36.63)
CIE-LCH	lch(62.61, 68.91, 32.11°)
OKLab	oklab(70% 0.1704 0.0862)
OKLCH	oklch(70% 0.191 26.8)
XYZ	xyz(47.6473, 31.1190, 13.1684)
Luminance	0.3111 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF645A #5AF5FF

analogous

#FF5AA3 #FF645A #FFB65A

triadic

#FF645A #5AFF64 #645AFF

tetradic

#FF645A #A3FF5A #5AF5FF #B65AFF

square

#FF645A #A3FF5A #5AF5FF #B65AFF

split-complementary

#FF645A #5AFFB6 #5AA3FF

monochromatic

#DF0D00 #FF2B1D #FF645A #FF9D97 #FFD7D4

Accessibility & contrast

On white

2.91

#FF645A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.22

#FF645A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FF645A

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF645A	#FFFFFF	#000000	##000000
##FF645A	1.00	2.91	7.22	7.22
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.22	21.00	1.00	1.00
##000000	7.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D8258

Deuteranopia (green-blind)

#B4A456

Tritanopia (blue-blind)

#FF4263

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #ff645a;
/* rgb */ color: rgb(255, 100, 90);
/* oklch */ color: oklch(70.0% 0.191 26.8);

Tailwind

colors: {
  custom: {
    50: '#ff9689',
    500: '#ff645a',
    950: '#000000',
  },
}

SCSS

$custom: #ff645a;
$custom-light: #ff9689;
$custom-dark: #000000;

JSON

{
  "hex": "#ff645a",
  "rgb": {
    "r": 255,
    "g": 100,
    "b": 90
  },
  "hsl": {
    "h": 3.636,
    "s": 100,
    "l": 67.647
  },
  "oklch": {
    "l": 0.70001,
    "c": 0.19093,
    "h": 26.8
  },
  "luminance": 0.31113
}

Semantic roles & 50–950 ramp

primary

#FF645A

secondary

#C1F1F4

accent

#D8E600

background

#FFF9F8

surface

#FFF2F0

border

#D7CCCB

text

#1A0E0B

muted

#877E7C

Preview Lab

Preview with #FF645A

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

Preview Lab → · Contrast checker → · Palette generator →