#6399C7#6399C7

#6399C7 is a light, moderate cyan. Relative luminance 0.296; OKLCH L 66.4% C 0.090 H 245.4°. Best body text is #000000 at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#6399C7
RGB	rgb(99, 153, 199)
HSL	hsl(208, 47%, 58%)
HSV	hsv(208, 50%, 78%)
CMYK	cmyk(50.3%, 23.1%, 0%, 22%)
CIE-LAB	lab(61.27, -5.02, -29.19)
CIE-LCH	lch(61.27, 29.62, 260.25°)
OKLab	oklab(66.37% -0.0373 -0.0815)
OKLCH	oklch(66.37% 0.09 245.4)
XYZ	xyz(26.8420, 29.5566, 58.3123)
Luminance	0.2956 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399C7 #C79163

analogous

#63C7C3 #6399C7 #6367C7

triadic

#6399C7 #C76399 #99C763

tetradic

#6399C7 #C363C7 #C79163 #67C763

square

#6399C7 #C363C7 #C79163 #67C763

split-complementary

#6399C7 #C76367 #C7C363

monochromatic

#2E5B81 #3F7BAE #6399C7 #90B6D7 #BDD4E7

Accessibility & contrast

On white

3.04

#6399C7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.91

#6399C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6399C7

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399C7	#FFFFFF	#000000	##000000
##6399C7	1.00	3.04	6.91	6.91
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.91	21.00	1.00	1.00
##000000	6.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#869AC9

Deuteranopia (green-blind)

#798FC6

Tritanopia (blue-blind)

#30A4A9

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #6399c7;
/* rgb */ color: rgb(99, 153, 199);
/* oklch */ color: oklch(66.4% 0.090 245.4);

Tailwind

colors: {
  custom: {
    50: '#95b6d8',
    500: '#6399c7',
    950: '#000000',
  },
}

SCSS

$custom: #6399c7;
$custom-light: #95b6d8;
$custom-dark: #000000;

JSON

{
  "hex": "#6399c7",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 199
  },
  "hsl": {
    "h": 207.6,
    "s": 47.17,
    "l": 58.431
  },
  "oklch": {
    "l": 0.66371,
    "c": 0.08959,
    "h": 245.4
  },
  "luminance": 0.29559
}

Semantic roles & 50–950 ramp

primary

#6399C7

secondary

#D7C1AF

accent

#8F51D7

background

#F9FBFD

surface

#F2F6FA

border

#CCD0D3

text

#0E1114

muted

#7E8083

Preview Lab

Preview with #6399C7

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

Preview Lab → · Contrast checker → · Palette generator →