#6699EB#6699EB

#6699EB is a light, vivid blue. Relative luminance 0.316; OKLCH L 68.3% C 0.134 H 259.5°. Best body text is #000000 at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#6699EB
RGB	rgb(102, 153, 235)
HSL	hsl(217, 77%, 66%)
HSV	hsv(217, 57%, 92%)
CMYK	cmyk(56.6%, 34.9%, 0%, 7.8%)
CIE-LAB	lab(63.01, 6.76, -46.47)
CIE-LCH	lch(63.01, 46.96, 278.27°)
OKLab	oklab(68.3% -0.0243 -0.1314)
OKLCH	oklch(68.3% 0.134 259.5)
XYZ	xyz(31.8609, 31.6028, 83.0021)
Luminance	0.3160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6699EB #EBB866

analogous

#66DCEB #6699EB #7566EB

triadic

#6699EB #EB6699 #99EB66

tetradic

#6699EB #EB66DC #EBB866 #66EB75

square

#6699EB #EB66DC #EBB866 #66EB75

split-complementary

#6699EB #EB7566 #DCEB66

monochromatic

#1958BE #3075E4 #6699EB #9CBDF2 #D2E1F9

Accessibility & contrast

On white

2.87

#6699EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.32

#6699EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6699EB

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6699EB	#FFFFFF	#000000	##000000
##6699EB	1.00	2.87	7.32	7.32
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.32	21.00	1.00	1.00
##000000	7.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#779FEE

Deuteranopia (green-blind)

#6693E9

Tritanopia (blue-blind)

#00ABB7

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #6699eb;
/* rgb */ color: rgb(102, 153, 235);
/* oklch */ color: oklch(68.3% 0.134 259.5);

Tailwind

colors: {
  custom: {
    50: '#9bb6f2',
    500: '#6699eb',
    950: '#000000',
  },
}

SCSS

$custom: #6699eb;
$custom-light: #9bb6f2;
$custom-dark: #000000;

JSON

{
  "hex": "#6699eb",
  "rgb": {
    "r": 102,
    "g": 153,
    "b": 235
  },
  "hsl": {
    "h": 216.992,
    "s": 76.879,
    "l": 66.078
  },
  "oklch": {
    "l": 0.68301,
    "c": 0.13365,
    "h": 259.5
  },
  "luminance": 0.31605
}

Semantic roles & 50–950 ramp

primary

#6699EB

secondary

#ECDBC1

accent

#8B0CD9

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #6699EB

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

Preview Lab → · Contrast checker → · Palette generator →