#6399CD#6399CD

#6399CD is a light, moderate cyan. Relative luminance 0.298; OKLCH L 66.6% C 0.097 H 248.6°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#6399CD
RGB	rgb(99, 153, 205)
HSL	hsl(209, 51%, 60%)
HSV	hsv(209, 52%, 80%)
CMYK	cmyk(51.7%, 25.4%, 0%, 19.6%)
CIE-LAB	lab(61.52, -3.21, -32.17)
CIE-LCH	lch(61.52, 32.33, 264.30°)
OKLab	oklab(66.65% -0.0353 -0.09)
OKLCH	oklch(66.65% 0.097 248.6)
XYZ	xyz(27.5524, 29.8408, 62.0537)
Luminance	0.2984 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399CD #CD9763

analogous

#63CDCC #6399CD #6364CD

triadic

#6399CD #CD6399 #99CD63

tetradic

#6399CD #CC63CD #CD9763 #64CD63

square

#6399CD #CC63CD #CD9763 #64CD63

split-complementary

#6399CD #CD6364 #CDCC63

monochromatic

#2C5C8A #3B7BB8 #6399CD #91B7DC #C0D6EB

Accessibility & contrast

On white

3.01

#6399CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#6399CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6399CD

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399CD	#FFFFFF	#000000	##000000
##6399CD	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#849ACF

Deuteranopia (green-blind)

#7690CC

Tritanopia (blue-blind)

#2AA5AB

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #6399cd;
/* rgb */ color: rgb(99, 153, 205);
/* oklch */ color: oklch(66.6% 0.097 248.6);

Tailwind

colors: {
  custom: {
    50: '#96b6dc',
    500: '#6399cd',
    950: '#000000',
  },
}

SCSS

$custom: #6399cd;
$custom-light: #96b6dc;
$custom-dark: #000000;

JSON

{
  "hex": "#6399cd",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 205
  },
  "hsl": {
    "h": 209.434,
    "s": 51.456,
    "l": 59.608
  },
  "oklch": {
    "l": 0.66647,
    "c": 0.09669,
    "h": 248.6
  },
  "luminance": 0.29843
}

Semantic roles & 50–950 ramp

primary

#6399CD

secondary

#DAC6B1

accent

#934DDB

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0E1115

muted

#7E8083

Preview Lab

Preview with #6399CD

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

Preview Lab → · Contrast checker → · Palette generator →