#6399C8#6399C8

#6399C8 is a light, moderate cyan. Relative luminance 0.296; OKLCH L 66.4% C 0.091 H 246.0°. Best body text is #000000 at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#6399C8
RGB	rgb(99, 153, 200)
HSL	hsl(208, 48%, 59%)
HSV	hsv(208, 51%, 78%)
CMYK	cmyk(50.5%, 23.5%, 0%, 21.6%)
CIE-LAB	lab(61.31, -4.72, -29.69)
CIE-LCH	lch(61.31, 30.06, 260.97°)
OKLab	oklab(66.42% -0.0369 -0.0829)
OKLCH	oklch(66.42% 0.091 246)
XYZ	xyz(26.9585, 29.6032, 58.9258)
Luminance	0.2960 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399C8 #C89263

analogous

#63C8C4 #6399C8 #6366C8

triadic

#6399C8 #C86399 #99C863

tetradic

#6399C8 #C463C8 #C89263 #66C863

square

#6399C8 #C463C8 #C89263 #66C863

split-complementary

#6399C8 #C86366 #C8C463

monochromatic

#2E5B83 #3E7BB0 #6399C8 #90B7D8 #BDD4E8

Accessibility & contrast

On white

3.03

#6399C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.92

#6399C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6399C8

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399C8	#FFFFFF	#000000	##000000
##6399C8	1.00	3.03	6.92	6.92
#FFFFFF	3.03	1.00	21.00	21.00
#000000	6.92	21.00	1.00	1.00
##000000	6.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#859ACA

Deuteranopia (green-blind)

#788FC7

Tritanopia (blue-blind)

#2FA4A9

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #6399c8;
/* rgb */ color: rgb(99, 153, 200);
/* oklch */ color: oklch(66.4% 0.091 246.0);

Tailwind

colors: {
  custom: {
    50: '#95b6d9',
    500: '#6399c8',
    950: '#000000',
  },
}

SCSS

$custom: #6399c8;
$custom-light: #95b6d9;
$custom-dark: #000000;

JSON

{
  "hex": "#6399c8",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 200
  },
  "hsl": {
    "h": 207.921,
    "s": 47.867,
    "l": 58.627
  },
  "oklch": {
    "l": 0.66416,
    "c": 0.09075,
    "h": 246
  },
  "luminance": 0.29605
}

Semantic roles & 50–950 ramp

primary

#6399C8

secondary

#D7C2AF

accent

#8F50D7

background

#F9FBFD

surface

#F2F6FA

border

#CCD0D3

text

#0E1114

muted

#7E8083

Preview Lab

Preview with #6399C8

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

Preview Lab → · Contrast checker → · Palette generator →