#FF4243#FF4243

#FF4243 is a light, highly saturated red. Relative luminance 0.256; OKLCH L 66.2% C 0.225 H 25.6°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#FF4243
RGB	rgb(255, 66, 67)
HSL	hsl(360, 100%, 63%)
HSV	hsv(360, 74%, 100%)
CMYK	cmyk(0%, 74.1%, 73.7%, 0%)
CIE-LAB	lab(57.63, 70.04, 43.46)
CIE-LCH	lch(57.63, 82.43, 31.82°)
OKLab	oklab(66.18% 0.2027 0.0973)
OKLCH	oklch(66.18% 0.225 25.6)
XYZ	xyz(44.2065, 25.5686, 7.9167)
Luminance	0.2556 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF4243 #42FFFE

analogous

#FF42A1 #FF4243 #FFA042

triadic

#FF4243 #43FF42 #4243FF

tetradic

#FF4243 #A1FF42 #42FFFE #A042FF

square

#FF4243 #A1FF42 #42FFFE #A042FF

split-complementary

#FF4243 #42FFA0 #42A1FF

monochromatic

#C70001 #FF0506 #FF4243 #FF7F80 #FFBCBD

Accessibility & contrast

On white

3.44

#FF4243 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.11

#FF4243 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #FF4243

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF4243	#FFFFFF	#000000	##000000
##FF4243	1.00	3.44	6.11	6.11
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.11	21.00	1.00	1.00
##000000	6.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B7041

Deuteranopia (green-blind)

#AA993C

Tritanopia (blue-blind)

#FF0045

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #ff4243;
/* rgb */ color: rgb(255, 66, 67);
/* oklch */ color: oklch(66.2% 0.225 25.6);

Tailwind

colors: {
  custom: {
    50: '#ff8478',
    500: '#ff4243',
    950: '#000000',
  },
}

SCSS

$custom: #ff4243;
$custom-light: #ff8478;
$custom-dark: #000000;

JSON

{
  "hex": "#ff4243",
  "rgb": {
    "r": 255,
    "g": 66,
    "b": 67
  },
  "hsl": {
    "h": 359.683,
    "s": 100,
    "l": 62.941
  },
  "oklch": {
    "l": 0.66175,
    "c": 0.22482,
    "h": 25.6
  },
  "luminance": 0.25562
}

Semantic roles & 50–950 ramp

primary

#FF4243

secondary

#ACF0F0

accent

#E6E400

background

#FFF8F7

surface

#FFF0ED

border

#D7CBC8

text

#1B0C09

muted

#887D7B

Preview Lab

Preview with #FF4243

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

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