#6699DC#6699DC

#6699DC is a light, moderate cyan. Relative luminance 0.308; OKLCH L 67.5% C 0.114 H 255.7°. Best body text is #000000 at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#6699DC
RGB	rgb(102, 153, 220)
HSL	hsl(214, 63%, 63%)
HSV	hsv(214, 54%, 86%)
CMYK	cmyk(53.6%, 30.5%, 0%, 13.7%)
CIE-LAB	lab(62.31, 2.05, -39.27)
CIE-LCH	lch(62.31, 39.32, 272.99°)
OKLab	oklab(67.53% -0.0282 -0.1105)
OKLCH	oklch(67.53% 0.114 255.7)
XYZ	xyz(29.7845, 30.7722, 72.0664)
Luminance	0.3078 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6699DC #DCA966

analogous

#66D4DC #6699DC #6E66DC

triadic

#6699DC #DC6699 #99DC66

tetradic

#6699DC #DC66D4 #DCA966 #66DC6E

square

#6699DC #DC66D4 #DCA966 #66DC6E

split-complementary

#6699DC #DC6E66 #D4DC66

monochromatic

#255BA2 #3478D1 #6699DC #98BAE7 #CADBF3

Accessibility & contrast

On white

2.94

#6699DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.16

#6699DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6699DC

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6699DC	#FFFFFF	#000000	##000000
##6699DC	1.00	2.94	7.16	7.16
#FFFFFF	2.94	1.00	21.00	21.00
#000000	7.16	21.00	1.00	1.00
##000000	7.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E9DDF

Deuteranopia (green-blind)

#6F92DB

Tritanopia (blue-blind)

#20A8B1

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #6699dc;
/* rgb */ color: rgb(102, 153, 220);
/* oklch */ color: oklch(67.5% 0.114 255.7);

Tailwind

colors: {
  custom: {
    50: '#99b6e7',
    500: '#6699dc',
    950: '#000000',
  },
}

SCSS

$custom: #6699dc;
$custom-light: #99b6e7;
$custom-dark: #000000;

JSON

{
  "hex": "#6699dc",
  "rgb": {
    "r": 102,
    "g": 153,
    "b": 220
  },
  "hsl": {
    "h": 214.068,
    "s": 62.766,
    "l": 63.137
  },
  "oklch": {
    "l": 0.67527,
    "c": 0.11403,
    "h": 255.7
  },
  "luminance": 0.30775
}

Semantic roles & 50–950 ramp

primary

#6699DC

secondary

#E4D2BA

accent

#7F1BCB

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #6699DC

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

Preview Lab → · Contrast checker → · Palette generator →