#FF0001#FF0001

#FF0001 is a light, highly saturated red. Relative luminance 0.213; OKLCH L 62.8% C 0.258 H 29.2°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#FF0001
RGB	rgb(255, 0, 1)
HSL	hsl(360, 100%, 50%)
HSV	hsv(360, 100%, 100%)
CMYK	cmyk(0%, 100%, 99.6%, 0%)
CIE-LAB	lab(53.24, 80.10, 66.95)
CIE-LCH	lch(53.24, 104.39, 39.89°)
OKLab	oklab(62.8% 0.225 0.1256)
OKLCH	oklch(62.8% 0.258 29.2)
XYZ	xyz(41.2511, 21.2695, 1.9622)
Luminance	0.2126 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF0001 #00FFFE

analogous

#FF0080 #FF0001 #FF7F00

triadic

#FF0001 #01FF00 #0001FF

tetradic

#FF0001 #80FF00 #00FFFE #7F00FF

square

#FF0001 #80FF00 #00FFFE #7F00FF

split-complementary

#FF0001 #00FF7F #0080FF

monochromatic

#850001 #C20001 #FF0001 #FF3D3E #FF7A7B

Accessibility & contrast

On white

4.00

#FF0001 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#FF0001 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #FF0001

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF0001	#FFFFFF	#000000	##000000
##FF0001	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D5F00

Deuteranopia (green-blind)

#A39000

Tritanopia (blue-blind)

#FF000F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #ff0001;
/* rgb */ color: rgb(255, 0, 1);
/* oklch */ color: oklch(62.8% 0.258 29.2);

Tailwind

colors: {
  custom: {
    50: '#ff7352',
    500: '#ff0001',
    950: '#000000',
  },
}

SCSS

$custom: #ff0001;
$custom-light: #ff7352;
$custom-dark: #000000;

JSON

{
  "hex": "#ff0001",
  "rgb": {
    "r": 255,
    "g": 0,
    "b": 1
  },
  "hsl": {
    "h": 359.765,
    "s": 100,
    "l": 50
  },
  "oklch": {
    "l": 0.62798,
    "c": 0.25764,
    "h": 29.2
  },
  "luminance": 0.21262
}

Semantic roles & 50–950 ramp

primary

#FF0001

secondary

#74E7E6

accent

#FFFE29

background

#FFF7F5

surface

#FFEEE9

border

#D7C9C5

text

#1C0A03

muted

#887C78

Preview Lab

Preview with #FF0001

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

Preview Lab → · Contrast checker → · Palette generator →