#FF003B#FF003B

#FF003B is a light, highly saturated red. Relative luminance 0.216; OKLCH L 63.2% C 0.254 H 22.0°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#FF003B
RGB	rgb(255, 0, 59)
HSL	hsl(346, 100%, 50%)
HSV	hsv(346, 100%, 100%)
CMYK	cmyk(0%, 100%, 76.9%, 0%)
CIE-LAB	lab(53.58, 81.02, 43.48)
CIE-LCH	lch(53.58, 91.95, 28.22°)
OKLab	oklab(63.15% 0.2359 0.0952)
OKLCH	oklch(63.15% 0.254 22)
XYZ	xyz(42.0348, 21.5829, 6.0895)
Luminance	0.2158 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF003B #00FFC4

analogous

#FF00BA #FF003B #FF4500

triadic

#FF003B #3BFF00 #003BFF

tetradic

#FF003B #BAFF00 #00FFC4 #4500FF

square

#FF003B #BAFF00 #00FFC4 #4500FF

split-complementary

#FF003B #00FF45 #00BAFF

monochromatic

#85001F #C2002D #FF003B #FF3D6A #FF7A99

Accessibility & contrast

On white

3.95

#FF003B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#FF003B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #FF003B

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF003B	#FFFFFF	#000000	##000000
##FF003B	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A613A

Deuteranopia (green-blind)

#A19131

Tritanopia (blue-blind)

#FF0024

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #ff003b;
/* rgb */ color: rgb(255, 0, 59);
/* oklch */ color: oklch(63.2% 0.254 22.0);

Tailwind

colors: {
  custom: {
    50: '#ff7471',
    500: '#ff003b',
    950: '#000000',
  },
}

SCSS

$custom: #ff003b;
$custom-light: #ff7471;
$custom-dark: #000000;

JSON

{
  "hex": "#ff003b",
  "rgb": {
    "r": 255,
    "g": 0,
    "b": 59
  },
  "hsl": {
    "h": 346.118,
    "s": 100,
    "l": 50
  },
  "oklch": {
    "l": 0.63154,
    "c": 0.25441,
    "h": 22
  },
  "luminance": 0.21576
}

Semantic roles & 50–950 ramp

primary

#FF003B

secondary

#74E7CC

accent

#FFCD29

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#1B0A07

muted

#887C7A

Preview Lab

Preview with #FF003B

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

Preview Lab → · Contrast checker → · Palette generator →