#6699BC#6699BC

#6699BC is a light, moderate cyan. Relative luminance 0.292; OKLCH L 66.0% C 0.076 H 239.4°. Best body text is #000000 at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#6699BC
RGB	rgb(102, 153, 188)
HSL	hsl(204, 39%, 57%)
HSV	hsv(204, 46%, 74%)
CMYK	cmyk(45.7%, 18.6%, 0%, 26.3%)
CIE-LAB	lab(60.99, -7.51, -23.43)
CIE-LCH	lch(60.99, 24.61, 252.24°)
OKLab	oklab(66.05% -0.0384 -0.065)
OKLCH	oklch(66.05% 0.076 239.4)
XYZ	xyz(25.9447, 29.2363, 51.8432)
Luminance	0.2924 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6699BC #BC8966

analogous

#66BCB4 #6699BC #666EBC

triadic

#6699BC #BC6699 #99BC66

tetradic

#6699BC #B466BC #BC8966 #6EBC66

square

#6699BC #B466BC #BC8966 #6EBC66

split-complementary

#6699BC #BC666E #BCB466

monochromatic

#335A75 #467B9F #6699BC #91B5CF #BBD2E1

Accessibility & contrast

On white

3.07

#6699BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.85

#6699BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6699BC

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6699BC	#FFFFFF	#000000	##000000
##6699BC	1.00	3.07	6.85	6.85
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.85	21.00	1.00	1.00
##000000	6.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A98BE

Deuteranopia (green-blind)

#7E8FBB

Tritanopia (blue-blind)

#41A2A4

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #6699bc;
/* rgb */ color: rgb(102, 153, 188);
/* oklch */ color: oklch(66.0% 0.076 239.4);

Tailwind

colors: {
  custom: {
    50: '#96b7d0',
    500: '#6699bc',
    950: '#000000',
  },
}

SCSS

$custom: #6699bc;
$custom-light: #96b7d0;
$custom-dark: #000000;

JSON

{
  "hex": "#6699bc",
  "rgb": {
    "r": 102,
    "g": 153,
    "b": 188
  },
  "hsl": {
    "h": 204.419,
    "s": 39.091,
    "l": 56.863
  },
  "oklch": {
    "l": 0.66048,
    "c": 0.07552,
    "h": 239.4
  },
  "luminance": 0.29238
}

Semantic roles & 50–950 ramp

primary

#6699BC

secondary

#D0BCAD

accent

#8959CF

background

#F9FBFC

surface

#F2F6F9

border

#CCD0D2

text

#0E1114

muted

#7E8082

Preview Lab

Preview with #6699BC

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

Preview Lab → · Contrast checker → · Palette generator →