#6388FD#6388FD

#6388FD is a light, vivid blue. Relative luminance 0.274; OKLCH L 65.7% C 0.178 H 268.0°. Best body text is #000000 at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#6388FD
RGB	rgb(99, 136, 253)
HSL	hsl(226, 97%, 69%)
HSV	hsv(226, 61%, 99%)
CMYK	cmyk(60.9%, 46.2%, 0%, 0.8%)
CIE-LAB	lab(59.30, 22.09, -62.30)
CIE-LCH	lch(59.30, 66.10, 289.52°)
OKLab	oklab(65.71% -0.0061 -0.1781)
OKLCH	oklch(65.71% 0.178 268)
XYZ	xyz(31.6733, 27.3501, 96.5194)
Luminance	0.2735 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6388FD #FDD863

analogous

#63D5FD #6388FD #8B63FD

triadic

#6388FD #FD6388 #88FD63

tetradic

#6388FD #FD63D5 #FDD863 #63FD8B

square

#6388FD #FD63D5 #FDD863 #63FD8B

split-complementary

#6388FD #FD8B63 #D5FD63

monochromatic

#0339E3 #275AFC #6388FD #9FB6FE #DCE4FF

Accessibility & contrast

On white

3.25

#6388FD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.47

#6388FD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6388FD

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6388FD	#FFFFFF	#000000	##000000
##6388FD	1.00	3.25	6.47	6.47
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.47	21.00	1.00	1.00
##000000	6.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E96FF

Deuteranopia (green-blind)

#3488FB

Tritanopia (blue-blind)

#00A3B6

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #6388fd;
/* rgb */ color: rgb(99, 136, 253);
/* oklch */ color: oklch(65.7% 0.178 268.0);

Tailwind

colors: {
  custom: {
    50: '#9caaff',
    500: '#6388fd',
    950: '#000000',
  },
}

SCSS

$custom: #6388fd;
$custom-light: #9caaff;
$custom-dark: #000000;

JSON

{
  "hex": "#6388fd",
  "rgb": {
    "r": 99,
    "g": 136,
    "b": 253
  },
  "hsl": {
    "h": 225.584,
    "s": 97.468,
    "l": 69.02
  },
  "oklch": {
    "l": 0.65707,
    "c": 0.17815,
    "h": 268
  },
  "luminance": 0.27353
}

Semantic roles & 50–950 ramp

primary

#6388FD

secondary

#F4EAC7

accent

#AE00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #6388FD

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

Preview Lab → · Contrast checker → · Palette generator →