#6399F8#6399F8

#6399F8 is a light, vivid blue. Relative luminance 0.322; OKLCH L 68.9% C 0.152 H 261.0°. Best body text is #000000 at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#6399F8
RGB	rgb(99, 153, 248)
HSL	hsl(218, 91%, 68%)
HSV	hsv(218, 60%, 97%)
CMYK	cmyk(60.1%, 38.3%, 0%, 2.7%)
CIE-LAB	lab(63.52, 10.36, -52.83)
CIE-LCH	lch(63.52, 53.83, 281.09°)
OKLab	oklab(68.86% -0.0239 -0.15)
OKLCH	oklch(68.86% 0.152 261)
XYZ	xyz(33.4742, 32.2095, 93.2417)
Luminance	0.3221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399F8 #F8C263

analogous

#63E3F8 #6399F8 #7763F8

triadic

#6399F8 #F86399 #99F863

tetradic

#6399F8 #F863E3 #F8C263 #63F877

square

#6399F8 #F863E3 #F8C263 #63F877

split-complementary

#6399F8 #F87763 #E3F863

monochromatic

#0A54D7 #2873F5 #6399F8 #9EBFFB #D8E6FD

Accessibility & contrast

On white

2.82

#6399F8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.44

#6399F8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6399F8

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399F8	#FFFFFF	#000000	##000000
##6399F8	1.00	2.82	7.44	7.44
#FFFFFF	2.82	1.00	21.00	21.00
#000000	7.44	21.00	1.00	1.00
##000000	7.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#70A1FC

Deuteranopia (green-blind)

#5C93F6

Tritanopia (blue-blind)

#00AEBD

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #6399f8;
/* rgb */ color: rgb(99, 153, 248);
/* oklch */ color: oklch(68.9% 0.152 261.0);

Tailwind

colors: {
  custom: {
    50: '#9bb6fb',
    500: '#6399f8',
    950: '#000000',
  },
}

SCSS

$custom: #6399f8;
$custom-light: #9bb6fb;
$custom-dark: #000000;

JSON

{
  "hex": "#6399f8",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 248
  },
  "hsl": {
    "h": 218.255,
    "s": 91.411,
    "l": 68.039
  },
  "oklch": {
    "l": 0.68864,
    "c": 0.15194,
    "h": 261
  },
  "luminance": 0.32212
}

Semantic roles & 50–950 ramp

primary

#6399F8

secondary

#F2E2C5

accent

#9200E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #6399F8

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

Preview Lab → · Contrast checker → · Palette generator →