#6388F9#6388F9

#6388F9 is a light, vivid blue. Relative luminance 0.271; OKLCH L 65.5% C 0.173 H 267.8°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#6388F9
RGB	rgb(99, 136, 249)
HSL	hsl(225, 93%, 68%)
HSV	hsv(225, 60%, 98%)
CMYK	cmyk(60.2%, 45.4%, 0%, 2.4%)
CIE-LAB	lab(59.06, 20.78, -60.47)
CIE-LCH	lch(59.06, 63.94, 288.96°)
OKLab	oklab(65.45% -0.0066 -0.1727)
OKLCH	oklch(65.45% 0.173 267.8)
XYZ	xyz(31.0428, 27.0979, 93.1987)
Luminance	0.2710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6388F9 #F9D463

analogous

#63D3F9 #6388F9 #8963F9

triadic

#6388F9 #F96388 #88F963

tetradic

#6388F9 #F963D3 #F9D463 #63F989

square

#6388F9 #F963D3 #F9D463 #63F989

split-complementary

#6388F9 #F98963 #D3F963

monochromatic

#083CD9 #285BF7 #6388F9 #9EB5FB #D9E2FE

Accessibility & contrast

On white

3.27

#6388F9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#6388F9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6388F9

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6388F9	#FFFFFF	#000000	##000000
##6388F9	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5295FD

Deuteranopia (green-blind)

#3A88F7

Tritanopia (blue-blind)

#00A2B4

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #6388f9;
/* rgb */ color: rgb(99, 136, 249);
/* oklch */ color: oklch(65.5% 0.173 267.8);

Tailwind

colors: {
  custom: {
    50: '#9baafc',
    500: '#6388f9',
    950: '#000000',
  },
}

SCSS

$custom: #6388f9;
$custom-light: #9baafc;
$custom-dark: #000000;

JSON

{
  "hex": "#6388f9",
  "rgb": {
    "r": 99,
    "g": 136,
    "b": 249
  },
  "hsl": {
    "h": 225.2,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.65454,
    "c": 0.1728,
    "h": 267.8
  },
  "luminance": 0.27101
}

Semantic roles & 50–950 ramp

primary

#6388F9

secondary

#F3E7C5

accent

#AD00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #6388F9

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

Preview Lab → · Contrast checker → · Palette generator →