#6599DB#6599DB

#6599DB is a light, moderate cyan. Relative luminance 0.307; OKLCH L 67.4% C 0.113 H 255.0°. Best body text is #000000 at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#6599DB
RGB	rgb(101, 153, 219)
HSL	hsl(214, 62%, 63%)
HSV	hsv(214, 54%, 86%)
CMYK	cmyk(53.9%, 30.1%, 0%, 14.1%)
CIE-LAB	lab(62.22, 1.52, -38.87)
CIE-LCH	lch(62.22, 38.90, 272.25°)
OKLab	oklab(67.43% -0.0294 -0.1093)
OKLCH	oklch(67.43% 0.113 255)
XYZ	xyz(29.5398, 30.6613, 71.3657)
Luminance	0.3066 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6599DB #DBA765

analogous

#65D4DB #6599DB #6C65DB

triadic

#6599DB #DB6599 #99DB65

tetradic

#6599DB #DB65D4 #DBA765 #65DB6C

square

#6599DB #DB65D4 #DBA765 #65DB6C

split-complementary

#6599DB #DB6C65 #D4DB65

monochromatic

#255CA0 #3378CF #6599DB #97BAE7 #C8DBF2

Accessibility & contrast

On white

2.94

#6599DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.13

#6599DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6599DB

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6599DB	#FFFFFF	#000000	##000000
##6599DB	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)

#7E9DDE

Deuteranopia (green-blind)

#6F91DA

Tritanopia (blue-blind)

#1DA8B0

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #6599db;
/* rgb */ color: rgb(101, 153, 219);
/* oklch */ color: oklch(67.4% 0.113 255.0);

Tailwind

colors: {
  custom: {
    50: '#98b6e6',
    500: '#6599db',
    950: '#000000',
  },
}

SCSS

$custom: #6599db;
$custom-light: #98b6e6;
$custom-dark: #000000;

JSON

{
  "hex": "#6599db",
  "rgb": {
    "r": 101,
    "g": 153,
    "b": 219
  },
  "hsl": {
    "h": 213.559,
    "s": 62.105,
    "l": 62.745
  },
  "oklch": {
    "l": 0.67426,
    "c": 0.1132,
    "h": 255
  },
  "luminance": 0.30664
}

Semantic roles & 50–950 ramp

primary

#6599DB

secondary

#E3D0B9

accent

#7D1CCA

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #6599DB

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

Preview Lab → · Contrast checker → · Palette generator →