#6599F4#6599F4

#6599F4 is a light, vivid blue. Relative luminance 0.321; OKLCH L 68.7% C 0.146 H 260.9°. Best body text is #000000 at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#6599F4
RGB	rgb(101, 153, 244)
HSL	hsl(218, 87%, 68%)
HSV	hsv(218, 59%, 96%)
CMYK	cmyk(58.6%, 37.3%, 0%, 4.3%)
CIE-LAB	lab(63.41, 9.44, -50.80)
CIE-LCH	lch(63.41, 51.67, 280.52°)
OKLab	oklab(68.74% -0.0231 -0.1441)
OKLCH	oklch(68.74% 0.146 260.9)
XYZ	xyz(33.0815, 32.0780, 90.0187)
Luminance	0.3208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6599F4 #F4C065

analogous

#65E0F4 #6599F4 #7865F4

triadic

#6599F4 #F46599 #99F465

tetradic

#6599F4 #F465E0 #F4C065 #65F478

square

#6599F4 #F465E0 #F4C065 #65F478

split-complementary

#6599F4 #F47865 #E0F465

monochromatic

#0F55D0 #2C73F0 #6599F4 #9EBFF8 #D7E5FC

Accessibility & contrast

On white

2.83

#6599F4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.42

#6599F4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6599F4

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6599F4	#FFFFFF	#000000	##000000
##6599F4	1.00	2.83	7.42	7.42
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.42	21.00	1.00	1.00
##000000	7.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#72A1F8

Deuteranopia (green-blind)

#6093F2

Tritanopia (blue-blind)

#00ADBB

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #6599f4;
/* rgb */ color: rgb(101, 153, 244);
/* oklch */ color: oklch(68.7% 0.146 260.9);

Tailwind

colors: {
  custom: {
    50: '#9bb6f8',
    500: '#6599f4',
    950: '#000000',
  },
}

SCSS

$custom: #6599f4;
$custom-light: #9bb6f8;
$custom-dark: #000000;

JSON

{
  "hex": "#6599f4",
  "rgb": {
    "r": 101,
    "g": 153,
    "b": 244
  },
  "hsl": {
    "h": 218.182,
    "s": 86.667,
    "l": 67.647
  },
  "oklch": {
    "l": 0.68739,
    "c": 0.14592,
    "h": 260.9
  },
  "luminance": 0.32081
}

Semantic roles & 50–950 ramp

primary

#6599F4

secondary

#F1E0C4

accent

#9102E3

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #6599F4

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

Preview Lab → · Contrast checker → · Palette generator →