#6399DD#6399DD

#6399DD is a light, moderate cyan. Relative luminance 0.307; OKLCH L 67.4% C 0.117 H 254.8°. Best body text is #000000 at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#6399DD
RGB	rgb(99, 153, 221)
HSL	hsl(213, 64%, 63%)
HSV	hsv(213, 55%, 87%)
CMYK	cmyk(55.2%, 30.8%, 0%, 13.3%)
CIE-LAB	lab(62.21, 1.72, -39.99)
CIE-LCH	lch(62.21, 40.03, 272.46°)
OKLab	oklab(67.42% -0.0305 -0.1126)
OKLCH	oklch(67.42% 0.117 254.8)
XYZ	xyz(29.5834, 30.6532, 72.7503)
Luminance	0.3066 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399DD #DDA763

analogous

#63D6DD #6399DD #6A63DD

triadic

#6399DD #DD6399 #99DD63

tetradic

#6399DD #DD63D6 #DDA763 #63DD6A

square

#6399DD #DD63D6 #DDA763 #63DD6A

split-complementary

#6399DD #DD6A63 #D6DD63

monochromatic

#235CA2 #3178D2 #6399DD #95BAE8 #C7DBF3

Accessibility & contrast

On white

2.94

#6399DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.13

#6399DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6399DD

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399DD	#FFFFFF	#000000	##000000
##6399DD	1.00	2.94	7.13	7.13
#FFFFFF	2.94	1.00	21.00	21.00
#000000	7.13	21.00	1.00	1.00
##000000	7.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D9DE0

Deuteranopia (green-blind)

#6E91DC

Tritanopia (blue-blind)

#0AA8B1

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #6399dd;
/* rgb */ color: rgb(99, 153, 221);
/* oklch */ color: oklch(67.4% 0.117 254.8);

Tailwind

colors: {
  custom: {
    50: '#97b6e8',
    500: '#6399dd',
    950: '#000000',
  },
}

SCSS

$custom: #6399dd;
$custom-light: #97b6e8;
$custom-dark: #000000;

JSON

{
  "hex": "#6399dd",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 221
  },
  "hsl": {
    "h": 213.443,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.67424,
    "c": 0.11669,
    "h": 254.8
  },
  "luminance": 0.30656
}

Semantic roles & 50–950 ramp

primary

#6399DD

secondary

#E4D0B8

accent

#7D19CC

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #6399DD

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

Preview Lab → · Contrast checker → · Palette generator →