#FF683D#FF683D

#FF683D is a light, vivid red. Relative luminance 0.315; OKLCH L 70.1% C 0.193 H 36.5°. Best body text is #000000 at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#FF683D
RGB	rgb(255, 104, 61)
HSL	hsl(13, 100%, 62%)
HSV	hsv(13, 76%, 100%)
CMYK	cmyk(0%, 59.2%, 76.1%, 0%)
CIE-LAB	lab(62.93, 55.27, 52.26)
CIE-LCH	lch(62.93, 76.07, 43.39°)
OKLab	oklab(70.14% 0.1555 0.1149)
OKLCH	oklch(70.14% 0.193 36.5)
XYZ	xyz(47.0376, 31.5041, 8.0180)
Luminance	0.3150 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF683D #3DD4FF

analogous

#FF3D73 #FF683D #FFC93D

triadic

#FF683D #3DFF68 #683DFF

tetradic

#FF683D #73FF3D #3DD4FF #C93DFF

square

#FF683D #73FF3D #3DD4FF #C93DFF

split-complementary

#FF683D #3DFFC9 #3D73FF

monochromatic

#C22B00 #FF3800 #FF683D #FF987A #FFC7B7

Accessibility & contrast

On white

2.88

#FF683D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.30

#FF683D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FF683D

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF683D	#FFFFFF	#000000	##000000
##FF683D	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)

#928337

Deuteranopia (green-blind)

#B7A538

Tritanopia (blue-blind)

#FF445F

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #ff683d;
/* rgb */ color: rgb(255, 104, 61);
/* oklch */ color: oklch(70.1% 0.193 36.5);

Tailwind

colors: {
  custom: {
    50: '#ff9875',
    500: '#ff683d',
    950: '#000000',
  },
}

SCSS

$custom: #ff683d;
$custom-light: #ff9875;
$custom-dark: #000000;

JSON

{
  "hex": "#ff683d",
  "rgb": {
    "r": 255,
    "g": 104,
    "b": 61
  },
  "hsl": {
    "h": 13.299,
    "s": 100,
    "l": 61.961
  },
  "oklch": {
    "l": 0.70137,
    "c": 0.19328,
    "h": 36.5
  },
  "luminance": 0.31498
}

Semantic roles & 50–950 ramp

primary

#FF683D

secondary

#A8E0F0

accent

#B3E600

background

#FFF9F7

surface

#FFF2ED

border

#D7CCC8

text

#1A0E08

muted

#877E7B

Preview Lab

Preview with #FF683D

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

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