#6388DA#6388DA

#6388DA is a light, vivid blue. Relative luminance 0.253; OKLCH L 63.6% C 0.131 H 264.6°. Best body text is #000000 at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#6388DA
RGB	rgb(99, 136, 218)
HSL	hsl(221, 62%, 62%)
HSV	hsv(221, 55%, 85%)
CMYK	cmyk(54.6%, 37.6%, 0%, 14.5%)
CIE-LAB	lab(57.39, 10.73, -45.92)
CIE-LCH	lch(57.39, 47.16, 283.15°)
OKLab	oklab(63.62% -0.0123 -0.13)
OKLCH	oklch(63.62% 0.131 264.6)
XYZ	xyz(26.6004, 25.3209, 69.8018)
Luminance	0.2532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6388DA #DAB563

analogous

#63C3DA #6388DA #7A63DA

triadic

#6388DA #DA6388 #88DA63

tetradic

#6388DA #DA63C3 #DAB563 #63DA7A

square

#6388DA #DA63C3 #DAB563 #63DA7A

split-complementary

#6388DA #DA7A63 #C3DA63

monochromatic

#254B9D #3262CE #6388DA #94AEE6 #C6D3F1

Accessibility & contrast

On white

3.46

#6388DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.06

#6388DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6388DA

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6388DA	#FFFFFF	#000000	##000000
##6388DA	1.00	3.46	6.06	6.06
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.06	21.00	1.00	1.00
##000000	6.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6790DD

Deuteranopia (green-blind)

#5885D8

Tritanopia (blue-blind)

#1D9AA6

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #6388da;
/* rgb */ color: rgb(99, 136, 218);
/* oklch */ color: oklch(63.6% 0.131 264.6);

Tailwind

colors: {
  custom: {
    50: '#97aae6',
    500: '#6388da',
    950: '#000000',
  },
}

SCSS

$custom: #6388da;
$custom-light: #97aae6;
$custom-dark: #000000;

JSON

{
  "hex": "#6388da",
  "rgb": {
    "r": 99,
    "g": 136,
    "b": 218
  },
  "hsl": {
    "h": 221.345,
    "s": 61.658,
    "l": 62.157
  },
  "oklch": {
    "l": 0.63619,
    "c": 0.13059,
    "h": 264.6
  },
  "luminance": 0.25323
}

Semantic roles & 50–950 ramp

primary

#6388DA

secondary

#E2D5B7

accent

#941CC9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #6388DA

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

Preview Lab → · Contrast checker → · Palette generator →