#6399DC#6399DC

#6399DC is a light, moderate cyan. Relative luminance 0.306; OKLCH L 67.4% C 0.115 H 254.5°. Best body text is #000000 at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#6399DC
RGB	rgb(99, 153, 220)
HSL	hsl(213, 63%, 63%)
HSV	hsv(213, 55%, 86%)
CMYK	cmyk(55%, 30.5%, 0%, 13.7%)
CIE-LAB	lab(62.17, 1.41, -39.51)
CIE-LCH	lch(62.17, 39.54, 272.04°)
OKLab	oklab(67.37% -0.0308 -0.1112)
OKLCH	oklch(67.37% 0.115 254.5)
XYZ	xyz(29.4506, 30.6000, 72.0507)
Luminance	0.3060 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399DC #DCA663

analogous

#63D6DC #6399DC #6963DC

triadic

#6399DC #DC6399 #99DC63

tetradic

#6399DC #DC63D6 #DCA663 #63DC69

square

#6399DC #DC63D6 #DCA663 #63DC69

split-complementary

#6399DC #DC6963 #D6DC63

monochromatic

#245CA1 #3178D1 #6399DC #95BAE7 #C7DAF2

Accessibility & contrast

On white

2.95

#6399DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.12

#6399DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6399DC

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399DC	#FFFFFF	#000000	##000000
##6399DC	1.00	2.95	7.12	7.12
#FFFFFF	2.95	1.00	21.00	21.00
#000000	7.12	21.00	1.00	1.00
##000000	7.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E9DDF

Deuteranopia (green-blind)

#6E91DB

Tritanopia (blue-blind)

#0EA8B1

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #6399dc;
/* rgb */ color: rgb(99, 153, 220);
/* oklch */ color: oklch(67.4% 0.115 254.5);

Tailwind

colors: {
  custom: {
    50: '#97b6e7',
    500: '#6399dc',
    950: '#000000',
  },
}

SCSS

$custom: #6399dc;
$custom-light: #97b6e7;
$custom-dark: #000000;

JSON

{
  "hex": "#6399dc",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 220
  },
  "hsl": {
    "h": 213.223,
    "s": 63.351,
    "l": 62.549
  },
  "oklch": {
    "l": 0.67373,
    "c": 0.11541,
    "h": 254.5
  },
  "luminance": 0.30602
}

Semantic roles & 50–950 ramp

primary

#6399DC

secondary

#E3D0B7

accent

#7C1ACB

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #6399DC

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

Preview Lab → · Contrast checker → · Palette generator →