#6399FC#6399FC

#6399FC is a light, vivid blue. Relative luminance 0.325; OKLCH L 69.1% C 0.157 H 261.6°. Best body text is #000000 at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#6399FC
RGB	rgb(99, 153, 252)
HSL	hsl(219, 96%, 69%)
HSV	hsv(219, 61%, 99%)
CMYK	cmyk(60.7%, 39.3%, 0%, 1.2%)
CIE-LAB	lab(63.72, 11.66, -54.69)
CIE-LCH	lch(63.72, 55.92, 282.04°)
OKLab	oklab(69.09% -0.023 -0.1555)
OKLCH	oklch(69.09% 0.157 261.6)
XYZ	xyz(34.1014, 32.4603, 96.5450)
Luminance	0.3246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399FC #FCC663

analogous

#63E5FC #6399FC #7A63FC

triadic

#6399FC #FC6399 #99FC63

tetradic

#6399FC #FC63E5 #FCC663 #63FC7A

square

#6399FC #FC63E5 #FCC663 #63FC7A

split-complementary

#6399FC #FC7A63 #E5FC63

monochromatic

#0452E0 #2772FB #6399FC #9FC0FD #DBE8FE

Accessibility & contrast

On white

2.80

#6399FC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.49

#6399FC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6399FC

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399FC	#FFFFFF	#000000	##000000
##6399FC	1.00	2.80	7.49	7.49
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.49	21.00	1.00	1.00
##000000	7.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6EA2FF

Deuteranopia (green-blind)

#5894FA

Tritanopia (blue-blind)

#00AFBE

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #6399fc;
/* rgb */ color: rgb(99, 153, 252);
/* oklch */ color: oklch(69.1% 0.157 261.6);

Tailwind

colors: {
  custom: {
    50: '#9bb6fe',
    500: '#6399fc',
    950: '#000000',
  },
}

SCSS

$custom: #6399fc;
$custom-light: #9bb6fe;
$custom-dark: #000000;

JSON

{
  "hex": "#6399fc",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 252
  },
  "hsl": {
    "h": 218.824,
    "s": 96.226,
    "l": 68.824
  },
  "oklch": {
    "l": 0.6909,
    "c": 0.1572,
    "h": 261.6
  },
  "luminance": 0.32463
}

Semantic roles & 50–950 ramp

primary

#6399FC

secondary

#F4E4C7

accent

#9500E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1118

muted

#7F8086

Preview Lab

Preview with #6399FC

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

Preview Lab → · Contrast checker → · Palette generator →