#6388FC#6388FC

#6388FC is a light, vivid blue. Relative luminance 0.273; OKLCH L 65.6% C 0.177 H 268.0°. Best body text is #000000 at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#6388FC
RGB	rgb(99, 136, 252)
HSL	hsl(225, 96%, 69%)
HSV	hsv(225, 61%, 99%)
CMYK	cmyk(60.7%, 46%, 0%, 1.2%)
CIE-LAB	lab(59.24, 21.76, -61.85)
CIE-LCH	lch(59.24, 65.56, 289.39°)
OKLab	oklab(65.64% -0.0062 -0.1767)
OKLCH	oklch(65.64% 0.177 268)
XYZ	xyz(31.5145, 27.2865, 95.6827)
Luminance	0.2729 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6388FC #FCD763

analogous

#63D5FC #6388FC #8B63FC

triadic

#6388FC #FC6388 #88FC63

tetradic

#6388FC #FC63D5 #FCD763 #63FC8B

square

#6388FC #FC63D5 #FCD763 #63FC8B

split-complementary

#6388FC #FC8B63 #D5FC63

monochromatic

#043AE0 #275AFB #6388FC #9FB6FD #DBE4FE

Accessibility & contrast

On white

3.25

#6388FC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.46

#6388FC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6388FC

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6388FC	#FFFFFF	#000000	##000000
##6388FC	1.00	3.25	6.46	6.46
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.46	21.00	1.00	1.00
##000000	6.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F96FF

Deuteranopia (green-blind)

#3588FA

Tritanopia (blue-blind)

#00A2B6

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #6388fc;
/* rgb */ color: rgb(99, 136, 252);
/* oklch */ color: oklch(65.6% 0.177 268.0);

Tailwind

colors: {
  custom: {
    50: '#9caafe',
    500: '#6388fc',
    950: '#000000',
  },
}

SCSS

$custom: #6388fc;
$custom-light: #9caafe;
$custom-dark: #000000;

JSON

{
  "hex": "#6388fc",
  "rgb": {
    "r": 99,
    "g": 136,
    "b": 252
  },
  "hsl": {
    "h": 225.49,
    "s": 96.226,
    "l": 68.824
  },
  "oklch": {
    "l": 0.65643,
    "c": 0.17682,
    "h": 268
  },
  "luminance": 0.27289
}

Semantic roles & 50–950 ramp

primary

#6388FC

secondary

#F4E9C7

accent

#AE00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #6388FC

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

Preview Lab → · Contrast checker → · Palette generator →