#6391DB#6391DB

#6391DB is a light, vivid blue. Relative luminance 0.280; OKLCH L 65.6% C 0.122 H 259.6°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#6391DB
RGB	rgb(99, 145, 219)
HSL	hsl(217, 63%, 62%)
HSV	hsv(217, 55%, 86%)
CMYK	cmyk(54.8%, 33.8%, 0%, 14.1%)
CIE-LAB	lab(59.90, 5.73, -42.51)
CIE-LCH	lch(59.90, 42.90, 277.68°)
OKLab	oklab(65.59% -0.0221 -0.12)
OKLCH	oklch(65.59% 0.122 259.6)
XYZ	xyz(28.0528, 28.0157, 70.9334)
Luminance	0.2802 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6391DB #DBAD63

analogous

#63CDDB #6391DB #7163DB

triadic

#6391DB #DB6391 #91DB63

tetradic

#6391DB #DB63CD #DBAD63 #63DB71

square

#6391DB #DB63CD #DBAD63 #63DB71

split-complementary

#6391DB #DB7163 #CDDB63

monochromatic

#25549F #316ED0 #6391DB #95B4E6 #C6D7F2

Accessibility & contrast

On white

3.18

#6391DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#6391DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6391DB

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6391DB	#FFFFFF	#000000	##000000
##6391DB	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7396DE

Deuteranopia (green-blind)

#648BD9

Tritanopia (blue-blind)

#16A1AC

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #6391db;
/* rgb */ color: rgb(99, 145, 219);
/* oklch */ color: oklch(65.6% 0.122 259.6);

Tailwind

colors: {
  custom: {
    50: '#97b0e6',
    500: '#6391db',
    950: '#000000',
  },
}

SCSS

$custom: #6391db;
$custom-light: #97b0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#6391db",
  "rgb": {
    "r": 99,
    "g": 145,
    "b": 219
  },
  "hsl": {
    "h": 217,
    "s": 62.5,
    "l": 62.353
  },
  "oklch": {
    "l": 0.65589,
    "c": 0.12201,
    "h": 259.6
  },
  "luminance": 0.28018
}

Semantic roles & 50–950 ramp

primary

#6391DB

secondary

#E3D2B7

accent

#871BCA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #6391DB

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

Preview Lab → · Contrast checker → · Palette generator →