#6399F2#6399F2

#6399F2 is a light, vivid blue. Relative luminance 0.318; OKLCH L 68.5% C 0.144 H 259.9°. Best body text is #000000 at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#6399F2
RGB	rgb(99, 153, 242)
HSL	hsl(217, 85%, 67%)
HSV	hsv(217, 59%, 95%)
CMYK	cmyk(59.1%, 36.8%, 0%, 5.1%)
CIE-LAB	lab(63.21, 8.41, -50.02)
CIE-LCH	lch(63.21, 50.72, 279.55°)
OKLab	oklab(68.53% -0.0252 -0.1418)
OKLCH	oklch(68.53% 0.144 259.9)
XYZ	xyz(32.5582, 31.8431, 88.4178)
Luminance	0.3185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399F2 #F2BC63

analogous

#63E0F2 #6399F2 #7563F2

triadic

#6399F2 #F26399 #99F263

tetradic

#6399F2 #F263E0 #F2BC63 #63F275

square

#6399F2 #F263E0 #F2BC63 #63F275

split-complementary

#6399F2 #F27563 #E0F263

monochromatic

#1157CA #2B74ED #6399F2 #9BBEF7 #D4E3FB

Accessibility & contrast

On white

2.85

#6399F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.37

#6399F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6399F2

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399F2	#FFFFFF	#000000	##000000
##6399F2	1.00	2.85	7.37	7.37
#FFFFFF	2.85	1.00	21.00	21.00
#000000	7.37	21.00	1.00	1.00
##000000	7.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#73A0F6

Deuteranopia (green-blind)

#6093F0

Tritanopia (blue-blind)

#00ADBA

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #6399f2;
/* rgb */ color: rgb(99, 153, 242);
/* oklch */ color: oklch(68.5% 0.144 259.9);

Tailwind

colors: {
  custom: {
    50: '#9ab6f7',
    500: '#6399f2',
    950: '#000000',
  },
}

SCSS

$custom: #6399f2;
$custom-light: #9ab6f7;
$custom-dark: #000000;

JSON

{
  "hex": "#6399f2",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 242
  },
  "hsl": {
    "h": 217.343,
    "s": 84.615,
    "l": 66.863
  },
  "oklch": {
    "l": 0.6853,
    "c": 0.14404,
    "h": 259.9
  },
  "luminance": 0.31846
}

Semantic roles & 50–950 ramp

primary

#6399F2

secondary

#EFDEC2

accent

#8E04E1

background

#FAFBFF

surface

#F3F6FE

border

#CDD0D6

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #6399F2

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

Preview Lab → · Contrast checker → · Palette generator →