#6399F7#6399F7

#6399F7 is a light, vivid blue. Relative luminance 0.322; OKLCH L 68.8% C 0.151 H 260.8°. Best body text is #000000 at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#6399F7
RGB	rgb(99, 153, 247)
HSL	hsl(218, 90%, 68%)
HSV	hsv(218, 60%, 97%)
CMYK	cmyk(59.9%, 38.1%, 0%, 3.1%)
CIE-LAB	lab(63.46, 10.03, -52.36)
CIE-LCH	lch(63.46, 53.31, 280.85°)
OKLab	oklab(68.81% -0.0241 -0.1487)
OKLCH	oklch(68.81% 0.151 260.8)
XYZ	xyz(33.3195, 32.1476, 92.4269)
Luminance	0.3215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399F7 #F7C163

analogous

#63E3F7 #6399F7 #7763F7

triadic

#6399F7 #F76399 #99F763

tetradic

#6399F7 #F763E3 #F7C163 #63F777

square

#6399F7 #F763E3 #F7C163 #63F777

split-complementary

#6399F7 #F77763 #E3F763

monochromatic

#0B55D5 #2973F4 #6399F7 #9DBFFA #D7E5FD

Accessibility & contrast

On white

2.83

#6399F7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.43

#6399F7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6399F7

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399F7	#FFFFFF	#000000	##000000
##6399F7	1.00	2.83	7.43	7.43
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.43	21.00	1.00	1.00
##000000	7.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#71A1FB

Deuteranopia (green-blind)

#5C93F5

Tritanopia (blue-blind)

#00AEBC

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #6399f7;
/* rgb */ color: rgb(99, 153, 247);
/* oklch */ color: oklch(68.8% 0.151 260.8);

Tailwind

colors: {
  custom: {
    50: '#9bb6fa',
    500: '#6399f7',
    950: '#000000',
  },
}

SCSS

$custom: #6399f7;
$custom-light: #9bb6fa;
$custom-dark: #000000;

JSON

{
  "hex": "#6399f7",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 247
  },
  "hsl": {
    "h": 218.108,
    "s": 90.244,
    "l": 67.843
  },
  "oklch": {
    "l": 0.68807,
    "c": 0.15062,
    "h": 260.8
  },
  "luminance": 0.32151
}

Semantic roles & 50–950 ramp

primary

#6399F7

secondary

#F2E1C4

accent

#9200E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #6399F7

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

Preview Lab → · Contrast checker → · Palette generator →