#6599D2#6599D2

#6599D2 is a light, moderate cyan. Relative luminance 0.302; OKLCH L 67.0% C 0.102 H 251.7°. Best body text is #000000 at 7.04:1 contrast (WCAG AA passes).

Color values

HEX#6599D2
RGBrgb(101, 153, 210)
HSLhsl(211, 55%, 61%)
HSVhsv(211, 52%, 82%)
CMYKcmyk(51.9%, 27.1%, 0%, 17.6%)
CIE-LABlab(61.83, -1.24, -34.47)
CIE-LCHlch(61.83, 34.49, 267.94°)
OKLaboklab(66.99% -0.032 -0.0966)
OKLCHoklch(66.99% 0.102 251.7)
XYZxyz(28.3869, 30.2001, 65.2936)
Luminance0.3020 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#6599D2 #D29E65
analogous
#65CFD2 #6599D2 #6765D2
triadic
#6599D2 #D26599 #99D265
tetradic
#6599D2 #D265CF #D29E65 #65D267
square
#6599D2 #D265CF #D29E65 #65D267
split-complementary
#6599D2 #D26765 #CFD265
monochromatic
#2B5C92 #387AC1 #6599D2 #94B8E0 #C4D8EE

Accessibility & contrast

On white

2.98
#6599D2 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.04
#6599D2 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6599D2
7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##6599D2#FFFFFF#000000##000000
##6599D21.002.987.047.04
#FFFFFF2.981.0021.0021.00
#0000007.0421.001.001.00
##0000007.0421.001.001.00

Color blindness preview

Protanopia (red-blind)
#829BD5
Deuteranopia (green-blind)
#7491D1
Tritanopia (blue-blind)
#2BA6AD
Achromatopsia (no color)
#959595

Design tokens & code

CSS
--color: #6599d2;
/* rgb */ color: rgb(101, 153, 210);
/* oklch */ color: oklch(67.0% 0.102 251.7);
Tailwind
colors: {
  custom: {
    50: '#97b6e0',
    500: '#6599d2',
    950: '#000000',
  },
}
SCSS
$custom: #6599d2;
$custom-light: #97b6e0;
$custom-dark: #000000;
JSON
{
  "hex": "#6599d2",
  "rgb": {
    "r": 101,
    "g": 153,
    "b": 210
  },
  "hsl": {
    "h": 211.376,
    "s": 54.774,
    "l": 60.98
  },
  "oklch": {
    "l": 0.66987,
    "c": 0.10179,
    "h": 251.7
  },
  "luminance": 0.30202
}

Semantic roles & 50–950 ramp

primary
#6599D2
secondary
#DECAB5
accent
#7623C2
background
#F9FBFD
surface
#F2F6FB
border
#CCD0D4
text
#0E1115
muted
#7E8083

Preview Lab

Preview with #6599D2

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

Preview Lab → · Contrast checker → · Palette generator →

#6599D2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva