#FF171D#FF171D

#FF171D is a light, highly saturated red. Relative luminance 0.220; OKLCH L 63.4% C 0.252 H 27.9°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#FF171D
RGB	rgb(255, 23, 29)
HSL	hsl(358, 100%, 55%)
HSV	hsv(358, 91%, 100%)
CMYK	cmyk(0%, 91%, 88.6%, 0%)
CIE-LAB	lab(53.99, 78.46, 58.94)
CIE-LCH	lch(53.99, 98.13, 36.92°)
OKLab	oklab(63.38% 0.2224 0.1178)
OKLCH	oklch(63.38% 0.252 27.9)
XYZ	xyz(41.7737, 21.9687, 3.2031)
Luminance	0.2196 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF171D #17FFF9

analogous

#FF1791 #FF171D #FF8517

triadic

#FF171D #1DFF17 #171DFF

tetradic

#FF171D #91FF17 #17FFF9 #8517FF

square

#FF171D #91FF17 #17FFF9 #8517FF

split-complementary

#FF171D #17FF85 #1791FF

monochromatic

#9C0004 #D90006 #FF171D #FF5459 #FF9194

Accessibility & contrast

On white

3.89

#FF171D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#FF171D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #FF171D

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF171D	#FFFFFF	#000000	##000000
##FF171D	1.00	3.89	5.39	5.39
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F6217

Deuteranopia (green-blind)

#A49201

Tritanopia (blue-blind)

#FF0020

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #ff171d;
/* rgb */ color: rgb(255, 23, 29);
/* oklch */ color: oklch(63.4% 0.252 27.9);

Tailwind

colors: {
  custom: {
    50: '#ff765e',
    500: '#ff171d',
    950: '#000000',
  },
}

SCSS

$custom: #ff171d;
$custom-light: #ff765e;
$custom-dark: #000000;

JSON

{
  "hex": "#ff171d",
  "rgb": {
    "r": 255,
    "g": 23,
    "b": 29
  },
  "hsl": {
    "h": 358.448,
    "s": 100,
    "l": 54.51
  },
  "oklch": {
    "l": 0.63381,
    "c": 0.25164,
    "h": 27.9
  },
  "luminance": 0.21962
}

Semantic roles & 50–950 ramp

primary

#FF171D

secondary

#88EAE7

accent

#FFF929

background

#FFF8F5

surface

#FFEFE9

border

#D7CAC5

text

#1C0A05

muted

#887C79

Preview Lab

Preview with #FF171D

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

Preview Lab → · Contrast checker → · Palette generator →