#6599FC#6599FC

#6599FC is a light, vivid blue. Relative luminance 0.326; OKLCH L 69.2% C 0.156 H 262.2°. Best body text is #000000 at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#6599FC
RGB	rgb(101, 153, 252)
HSL	hsl(219, 96%, 69%)
HSV	hsv(219, 60%, 99%)
CMYK	cmyk(59.9%, 39.3%, 0%, 1.2%)
CIE-LAB	lab(63.81, 12.03, -54.54)
CIE-LCH	lch(63.81, 55.85, 282.44°)
OKLab	oklab(69.19% -0.0214 -0.155)
OKLCH	oklch(69.19% 0.156 262.2)
XYZ	xyz(34.3226, 32.5744, 96.5553)
Luminance	0.3258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6599FC #FCC865

analogous

#65E4FC #6599FC #7D65FC

triadic

#6599FC #FC6599 #99FC65

tetradic

#6599FC #FC65E4 #FCC865 #65FC7D

square

#6599FC #FC65E4 #FCC865 #65FC7D

split-complementary

#6599FC #FC7D65 #E4FC65

monochromatic

#0451E2 #2971FB #6599FC #A1C1FD #DDE9FE

Accessibility & contrast

On white

2.79

#6599FC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.52

#6599FC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6599FC

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6599FC	#FFFFFF	#000000	##000000
##6599FC	1.00	2.79	7.52	7.52
#FFFFFF	2.79	1.00	21.00	21.00
#000000	7.52	21.00	1.00	1.00
##000000	7.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6EA2FF

Deuteranopia (green-blind)

#5994FA

Tritanopia (blue-blind)

#00AFBE

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #6599fc;
/* rgb */ color: rgb(101, 153, 252);
/* oklch */ color: oklch(69.2% 0.156 262.2);

Tailwind

colors: {
  custom: {
    50: '#9cb6fe',
    500: '#6599fc',
    950: '#000000',
  },
}

SCSS

$custom: #6599fc;
$custom-light: #9cb6fe;
$custom-dark: #000000;

JSON

{
  "hex": "#6599fc",
  "rgb": {
    "r": 101,
    "g": 153,
    "b": 252
  },
  "hsl": {
    "h": 219.338,
    "s": 96.178,
    "l": 69.216
  },
  "oklch": {
    "l": 0.69188,
    "c": 0.15647,
    "h": 262.2
  },
  "luminance": 0.32577
}

Semantic roles & 50–950 ramp

primary

#6599FC

secondary

#F4E5C8

accent

#9600E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1118

muted

#7F8086

Preview Lab

Preview with #6599FC

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

Preview Lab → · Contrast checker → · Palette generator →