#6388DB#6388DB

#6388DB is a light, vivid blue. Relative luminance 0.254; OKLCH L 63.7% C 0.132 H 264.8°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#6388DB
RGB	rgb(99, 136, 219)
HSL	hsl(222, 63%, 62%)
HSV	hsv(222, 55%, 86%)
CMYK	cmyk(54.8%, 37.9%, 0%, 14.1%)
CIE-LAB	lab(57.44, 11.05, -46.40)
CIE-LCH	lch(57.44, 47.70, 283.40°)
OKLab	oklab(63.68% -0.0121 -0.1314)
OKLCH	oklch(63.68% 0.132 264.8)
XYZ	xyz(26.7316, 25.3734, 70.4930)
Luminance	0.2537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6388DB #DBB663

analogous

#63C4DB #6388DB #7A63DB

triadic

#6388DB #DB6388 #88DB63

tetradic

#6388DB #DB63C4 #DBB663 #63DB7A

square

#6388DB #DB63C4 #DBB663 #63DB7A

split-complementary

#6388DB #DB7A63 #C4DB63

monochromatic

#254A9F #3162D0 #6388DB #95AEE6 #C6D4F2

Accessibility & contrast

On white

3.46

#6388DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.07

#6388DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6388DB

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6388DB	#FFFFFF	#000000	##000000
##6388DB	1.00	3.46	6.07	6.07
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.07	21.00	1.00	1.00
##000000	6.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6690DE

Deuteranopia (green-blind)

#5785D9

Tritanopia (blue-blind)

#1B9AA7

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #6388db;
/* rgb */ color: rgb(99, 136, 219);
/* oklch */ color: oklch(63.7% 0.132 264.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#6388db",
  "rgb": {
    "r": 99,
    "g": 136,
    "b": 219
  },
  "hsl": {
    "h": 221.5,
    "s": 62.5,
    "l": 62.353
  },
  "oklch": {
    "l": 0.63675,
    "c": 0.13197,
    "h": 264.8
  },
  "luminance": 0.25375
}

Semantic roles & 50–950 ramp

primary

#6388DB

secondary

#E3D5B7

accent

#941BCA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #6388DB

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

Preview Lab → · Contrast checker → · Palette generator →