#6399F6#6399F6

#6399F6 is a light, vivid blue. Relative luminance 0.321; OKLCH L 68.8% C 0.149 H 260.6°. Best body text is #000000 at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#6399F6
RGB	rgb(99, 153, 246)
HSL	hsl(218, 89%, 68%)
HSV	hsv(218, 60%, 96%)
CMYK	cmyk(59.8%, 37.8%, 0%, 3.5%)
CIE-LAB	lab(63.41, 9.71, -51.89)
CIE-LCH	lch(63.41, 52.79, 280.60°)
OKLab	oklab(68.75% -0.0243 -0.1473)
OKLCH	oklch(68.75% 0.149 260.6)
XYZ	xyz(33.1656, 32.0860, 91.6164)
Luminance	0.3209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399F6 #F6C063

analogous

#63E3F6 #6399F6 #7663F6

triadic

#6399F6 #F66399 #99F663

tetradic

#6399F6 #F663E3 #F6C063 #63F676

square

#6399F6 #F663E3 #F6C063 #63F676

split-complementary

#6399F6 #F67663 #E3F663

monochromatic

#0C55D2 #2973F3 #6399F6 #9DBFF9 #D7E5FD

Accessibility & contrast

On white

2.83

#6399F6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.42

#6399F6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6399F6

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399F6	#FFFFFF	#000000	##000000
##6399F6	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)

#71A1FA

Deuteranopia (green-blind)

#5D93F4

Tritanopia (blue-blind)

#00AEBC

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #6399f6;
/* rgb */ color: rgb(99, 153, 246);
/* oklch */ color: oklch(68.8% 0.149 260.6);

Tailwind

colors: {
  custom: {
    50: '#9bb6f9',
    500: '#6399f6',
    950: '#000000',
  },
}

SCSS

$custom: #6399f6;
$custom-light: #9bb6f9;
$custom-dark: #000000;

JSON

{
  "hex": "#6399f6",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 246
  },
  "hsl": {
    "h": 217.959,
    "s": 89.091,
    "l": 67.647
  },
  "oklch": {
    "l": 0.68752,
    "c": 0.1493,
    "h": 260.6
  },
  "luminance": 0.32089
}

Semantic roles & 50–950 ramp

primary

#6399F6

secondary

#F1E0C4

accent

#9100E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #6399F6

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

Preview Lab → · Contrast checker → · Palette generator →