#6699CC#6699CC

#6699CC is a light, moderate cyan. Relative luminance 0.300; OKLCH L 66.8% C 0.094 H 249.4°. Best body text is #000000 at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#6699CC
RGB	rgb(102, 153, 204)
HSL	hsl(210, 50%, 60%)
HSV	hsv(210, 50%, 80%)
CMYK	cmyk(50%, 25%, 0%, 20%)
CIE-LAB	lab(61.62, -2.82, -31.43)
CIE-LCH	lch(61.62, 31.56, 264.87°)
OKLab	oklab(66.76% -0.033 -0.0878)
OKLCH	oklch(66.76% 0.094 249.4)
XYZ	xyz(27.7660, 29.9648, 61.4357)
Luminance	0.2997 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6699CC #CC9966

analogous

#66CCCC #6699CC #6666CC

triadic

#6699CC #CC6699 #99CC66

tetradic

#6699CC #CC66CC #CC9966 #66CC66

square

#6699CC #CC66CC #CC9966 #66CC66

split-complementary

#6699CC #CC6666 #CCCC66

monochromatic

#2E5C8A #3D7AB8 #6699CC #94B8DB #C2D6EB

Accessibility & contrast

On white

3.00

#6699CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.99

#6699CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6699CC

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6699CC	#FFFFFF	#000000	##000000
##6699CC	1.00	3.00	6.99	6.99
#FFFFFF	3.00	1.00	21.00	21.00
#000000	6.99	21.00	1.00	1.00
##000000	6.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#849BCE

Deuteranopia (green-blind)

#7790CB

Tritanopia (blue-blind)

#34A5AA

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #6699cc;
/* rgb */ color: rgb(102, 153, 204);
/* oklch */ color: oklch(66.8% 0.094 249.4);

Tailwind

colors: {
  custom: {
    50: '#97b6db',
    500: '#6699cc',
    950: '#000000',
  },
}

SCSS

$custom: #6699cc;
$custom-light: #97b6db;
$custom-dark: #000000;

JSON

{
  "hex": "#6699cc",
  "rgb": {
    "r": 102,
    "g": 153,
    "b": 204
  },
  "hsl": {
    "h": 210,
    "s": 50,
    "l": 60
  },
  "oklch": {
    "l": 0.66758,
    "c": 0.09386,
    "h": 249.4
  },
  "luminance": 0.29967
}

Semantic roles & 50–950 ramp

primary

#6699CC

secondary

#DBC7B3

accent

#944EDA

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0E1115

muted

#7E8083

Preview Lab

Preview with #6699CC

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

Preview Lab → · Contrast checker → · Palette generator →