#F3634F#F3634F

#F3634F is a light, vivid red. Relative luminance 0.285; OKLCH L 67.9% C 0.181 H 30.3°. Best body text is #000000 at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#F3634F
RGB	rgb(243, 99, 79)
HSL	hsl(7, 87%, 63%)
HSV	hsv(7, 67%, 95%)
CMYK	cmyk(0%, 59.3%, 67.5%, 4.7%)
CIE-LAB	lab(60.38, 54.13, 39.54)
CIE-LCH	lch(60.38, 67.03, 36.15°)
OKLab	oklab(67.91% 0.1564 0.0915)
OKLCH	oklch(67.91% 0.181 30.3)
XYZ	xyz(42.8395, 28.5486, 10.6502)
Luminance	0.2854 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3634F #4FDFF3

analogous

#F34F8D #F3634F #F3B54F

triadic

#F3634F #4FF363 #634FF3

tetradic

#F3634F #8DF34F #4FDFF3 #B54FF3

square

#F3634F #8DF34F #4FDFF3 #B54FF3

split-complementary

#F3634F #4FF3B5 #4F8DF3

monochromatic

#BB220D #EF3016 #F3634F #F79688 #FBC9C2

Accessibility & contrast

On white

3.13

#F3634F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.71

#F3634F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #F3634F

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3634F	#FFFFFF	#000000	##000000
##F3634F	1.00	3.13	6.71	6.71
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.71	21.00	1.00	1.00
##000000	6.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#897E4C

Deuteranopia (green-blind)

#AD9D4B

Tritanopia (blue-blind)

#FF445F

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #f3634f;
/* rgb */ color: rgb(243, 99, 79);
/* oklch */ color: oklch(67.9% 0.181 30.3);

Tailwind

colors: {
  custom: {
    50: '#ff9481',
    500: '#f3634f',
    950: '#000000',
  },
}

SCSS

$custom: #f3634f;
$custom-light: #ff9481;
$custom-dark: #000000;

JSON

{
  "hex": "#f3634f",
  "rgb": {
    "r": 243,
    "g": 99,
    "b": 79
  },
  "hsl": {
    "h": 7.317,
    "s": 87.234,
    "l": 63.137
  },
  "oklch": {
    "l": 0.67909,
    "c": 0.1812,
    "h": 30.3
  },
  "luminance": 0.28543
}

Semantic roles & 50–950 ramp

primary

#F3634F

secondary

#B2E5EC

accent

#C8E402

background

#FFF9F7

surface

#FFF2EE

border

#D7CCC9

text

#190E0A

muted

#877E7C

Preview Lab

Preview with #F3634F

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

Preview Lab → · Contrast checker → · Palette generator →