#6391EC#6391EC

#6391EC is a light, vivid blue. Relative luminance 0.290; OKLCH L 66.5% C 0.145 H 262.8°. Best body text is #000000 at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#6391EC
RGB	rgb(99, 145, 236)
HSL	hsl(220, 78%, 66%)
HSV	hsv(220, 58%, 93%)
CMYK	cmyk(58.1%, 38.6%, 0%, 7.5%)
CIE-LAB	lab(60.74, 11.17, -50.62)
CIE-LCH	lch(60.74, 51.84, 282.44°)
OKLab	oklab(66.52% -0.0181 -0.1437)
OKLCH	oklch(66.52% 0.145 262.8)
XYZ	xyz(30.4061, 28.9570, 83.3276)
Luminance	0.2896 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6391EC #ECBE63

analogous

#63D5EC #6391EC #7963EC

triadic

#6391EC #EC6391 #91EC63

tetradic

#6391EC #EC63D5 #ECBE63 #63EC79

square

#6391EC #EC63D5 #ECBE63 #63EC79

split-complementary

#6391EC #EC7963 #D5EC63

monochromatic

#174FBE #2C6BE5 #6391EC #9AB7F3 #D0DEF9

Accessibility & contrast

On white

3.09

#6391EC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.79

#6391EC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6391EC

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6391EC	#FFFFFF	#000000	##000000
##6391EC	1.00	3.09	6.79	6.79
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.79	21.00	1.00	1.00
##000000	6.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A99F0

Deuteranopia (green-blind)

#588DEA

Tritanopia (blue-blind)

#00A5B3

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #6391ec;
/* rgb */ color: rgb(99, 145, 236);
/* oklch */ color: oklch(66.5% 0.145 262.8);

Tailwind

colors: {
  custom: {
    50: '#99b0f2',
    500: '#6391ec',
    950: '#000000',
  },
}

SCSS

$custom: #6391ec;
$custom-light: #99b0f2;
$custom-dark: #000000;

JSON

{
  "hex": "#6391ec",
  "rgb": {
    "r": 99,
    "g": 145,
    "b": 236
  },
  "hsl": {
    "h": 219.854,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.66516,
    "c": 0.14481,
    "h": 262.8
  },
  "luminance": 0.2896
}

Semantic roles & 50–950 ramp

primary

#6391EC

secondary

#ECDDBF

accent

#950BDB

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #6391EC

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

Preview Lab → · Contrast checker → · Palette generator →