#FF683B#FF683B

#FF683B is a light, vivid red. Relative luminance 0.315; OKLCH L 70.1% C 0.194 H 36.9°. Best body text is #000000 at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#FF683B
RGB	rgb(255, 104, 59)
HSL	hsl(14, 100%, 62%)
HSV	hsv(14, 77%, 100%)
CMYK	cmyk(0%, 59.2%, 76.9%, 0%)
CIE-LAB	lab(62.91, 55.20, 53.21)
CIE-LCH	lch(62.91, 76.67, 43.95°)
OKLab	oklab(70.12% 0.1549 0.1164)
OKLCH	oklch(70.12% 0.194 36.9)
XYZ	xyz(46.9848, 31.4829, 7.7395)
Luminance	0.3148 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF683B #3BD2FF

analogous

#FF3B70 #FF683B #FFCA3B

triadic

#FF683B #3BFF68 #683BFF

tetradic

#FF683B #70FF3B #3BD2FF #CA3BFF

square

#FF683B #70FF3B #3BD2FF #CA3BFF

split-complementary

#FF683B #3BFFCA #3B70FF

monochromatic

#C02C00 #FD3A00 #FF683B #FF9778 #FFC6B5

Accessibility & contrast

On white

2.88

#FF683B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.30

#FF683B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FF683B

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF683B	#FFFFFF	#000000	##000000
##FF683B	1.00	2.88	7.30	7.30
#FFFFFF	2.88	1.00	21.00	21.00
#000000	7.30	21.00	1.00	1.00
##000000	7.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928335

Deuteranopia (green-blind)

#B8A536

Tritanopia (blue-blind)

#FF435F

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #ff683b;
/* rgb */ color: rgb(255, 104, 59);
/* oklch */ color: oklch(70.1% 0.194 36.9);

Tailwind

colors: {
  custom: {
    50: '#ff9874',
    500: '#ff683b',
    950: '#000000',
  },
}

SCSS

$custom: #ff683b;
$custom-light: #ff9874;
$custom-dark: #000000;

JSON

{
  "hex": "#ff683b",
  "rgb": {
    "r": 255,
    "g": 104,
    "b": 59
  },
  "hsl": {
    "h": 13.776,
    "s": 100,
    "l": 61.569
  },
  "oklch": {
    "l": 0.70118,
    "c": 0.19375,
    "h": 36.9
  },
  "luminance": 0.31476
}

Semantic roles & 50–950 ramp

primary

#FF683B

secondary

#A6DFEF

accent

#B1E600

background

#FFF9F7

surface

#FFF2ED

border

#D7CCC8

text

#1A0E08

muted

#877E7B

Preview Lab

Preview with #FF683B

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

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