#6599DD#6599DD

#6599DD is a light, moderate cyan. Relative luminance 0.308; OKLCH L 67.5% C 0.116 H 255.6°. Best body text is #000000 at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#6599DD
RGB	rgb(101, 153, 221)
HSL	hsl(214, 64%, 63%)
HSV	hsv(214, 54%, 87%)
CMYK	cmyk(54.3%, 30.8%, 0%, 13.3%)
CIE-LAB	lab(62.31, 2.15, -39.84)
CIE-LCH	lch(62.31, 39.89, 273.08°)
OKLab	oklab(67.53% -0.0288 -0.1121)
OKLCH	oklch(67.53% 0.116 255.6)
XYZ	xyz(29.8047, 30.7672, 72.7607)
Luminance	0.3077 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6599DD #DDA965

analogous

#65D5DD #6599DD #6D65DD

triadic

#6599DD #DD6599 #99DD65

tetradic

#6599DD #DD65D5 #DDA965 #65DD6D

square

#6599DD #DD65D5 #DDA965 #65DD6D

split-complementary

#6599DD #DD6D65 #D5DD65

monochromatic

#245BA4 #3378D2 #6599DD #97BAE8 #C9DBF3

Accessibility & contrast

On white

2.94

#6599DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.15

#6599DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6599DD

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6599DD	#FFFFFF	#000000	##000000
##6599DD	1.00	2.94	7.15	7.15
#FFFFFF	2.94	1.00	21.00	21.00
#000000	7.15	21.00	1.00	1.00
##000000	7.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E9DE0

Deuteranopia (green-blind)

#6E91DC

Tritanopia (blue-blind)

#19A8B1

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #6599dd;
/* rgb */ color: rgb(101, 153, 221);
/* oklch */ color: oklch(67.5% 0.116 255.6);

Tailwind

colors: {
  custom: {
    50: '#99b6e8',
    500: '#6599dd',
    950: '#000000',
  },
}

SCSS

$custom: #6599dd;
$custom-light: #99b6e8;
$custom-dark: #000000;

JSON

{
  "hex": "#6599dd",
  "rgb": {
    "r": 101,
    "g": 153,
    "b": 221
  },
  "hsl": {
    "h": 214,
    "s": 63.83,
    "l": 63.137
  },
  "oklch": {
    "l": 0.67526,
    "c": 0.11578,
    "h": 255.6
  },
  "luminance": 0.3077
}

Semantic roles & 50–950 ramp

primary

#6599DD

secondary

#E4D2B9

accent

#7F1ACC

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #6599DD

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

Preview Lab → · Contrast checker → · Palette generator →