#FF665B#FF665B

#FF665B is a light, vivid red. Relative luminance 0.315; OKLCH L 70.3% C 0.189 H 27.1°. Best body text is #000000 at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#FF665B
RGB	rgb(255, 102, 91)
HSL	hsl(4, 100%, 68%)
HSV	hsv(4, 64%, 100%)
CMYK	cmyk(0%, 60%, 64.3%, 0%)
CIE-LAB	lab(62.95, 57.56, 36.49)
CIE-LCH	lch(62.95, 68.15, 32.37°)
OKLab	oklab(70.26% 0.168 0.086)
OKLCH	oklch(70.26% 0.189 27.1)
XYZ	xyz(47.8844, 31.5245, 13.4588)
Luminance	0.3152 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF665B #5BF4FF

analogous

#FF5BA2 #FF665B #FFB85B

triadic

#FF665B #5BFF66 #665BFF

tetradic

#FF665B #A2FF5B #5BF4FF #B85BFF

square

#FF665B #A2FF5B #5BF4FF #B85BFF

split-complementary

#FF665B #5BFFB8 #5BA2FF

monochromatic

#E00F00 #FF2D1E #FF665B #FF9F98 #FFD8D5

Accessibility & contrast

On white

2.88

#FF665B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.30

#FF665B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FF665B

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF665B	#FFFFFF	#000000	##000000
##FF665B	1.00	2.88	7.30	7.30
#FFFFFF	2.88	1.00	21.00	21.00
#000000	7.30	21.00	1.00	1.00
##000000	7.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E8459

Deuteranopia (green-blind)

#B4A557

Tritanopia (blue-blind)

#FF4664

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #ff665b;
/* rgb */ color: rgb(255, 102, 91);
/* oklch */ color: oklch(70.3% 0.189 27.1);

Tailwind

colors: {
  custom: {
    50: '#ff9789',
    500: '#ff665b',
    950: '#000000',
  },
}

SCSS

$custom: #ff665b;
$custom-light: #ff9789;
$custom-dark: #000000;

JSON

{
  "hex": "#ff665b",
  "rgb": {
    "r": 255,
    "g": 102,
    "b": 91
  },
  "hsl": {
    "h": 4.024,
    "s": 100,
    "l": 67.843
  },
  "oklch": {
    "l": 0.70261,
    "c": 0.18875,
    "h": 27.1
  },
  "luminance": 0.31518
}

Semantic roles & 50–950 ramp

primary

#FF665B

secondary

#C2F1F4

accent

#D6E600

background

#FFF9F8

surface

#FFF2F0

border

#D7CCCB

text

#1A0E0B

muted

#877E7C

Preview Lab

Preview with #FF665B

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

Preview Lab → · Contrast checker → · Palette generator →