#6391FB#6391FB

#6391FB is a light, vivid blue. Relative luminance 0.299; OKLCH L 67.4% C 0.165 H 264.7°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#6391FB
RGB	rgb(99, 145, 251)
HSL	hsl(222, 95%, 69%)
HSV	hsv(222, 61%, 98%)
CMYK	cmyk(60.6%, 42.2%, 0%, 1.6%)
CIE-LAB	lab(61.54, 16.06, -57.62)
CIE-LCH	lch(61.54, 59.81, 285.57°)
OKLab	oklab(67.39% -0.0152 -0.1642)
OKLCH	oklch(67.39% 0.165 264.7)
XYZ	xyz(32.6776, 29.8656, 95.2907)
Luminance	0.2987 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6391FB #FBCD63

analogous

#63DDFB #6391FB #8163FB

triadic

#6391FB #FB6391 #91FB63

tetradic

#6391FB #FB63DD #FBCD63 #63FB81

square

#6391FB #FB63DD #FBCD63 #63FB81

split-complementary

#6391FB #FB8163 #DDFB63

monochromatic

#0647DE #2767F9 #6391FB #9FBBFD #DAE5FE

Accessibility & contrast

On white

3.01

#6391FB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#6391FB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6391FB

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6391FB	#FFFFFF	#000000	##000000
##6391FB	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#619CFF

Deuteranopia (green-blind)

#4B8EF9

Tritanopia (blue-blind)

#00A9BA

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #6391fb;
/* rgb */ color: rgb(99, 145, 251);
/* oklch */ color: oklch(67.4% 0.165 264.7);

Tailwind

colors: {
  custom: {
    50: '#9bb0fd',
    500: '#6391fb',
    950: '#000000',
  },
}

SCSS

$custom: #6391fb;
$custom-light: #9bb0fd;
$custom-dark: #000000;

JSON

{
  "hex": "#6391fb",
  "rgb": {
    "r": 99,
    "g": 145,
    "b": 251
  },
  "hsl": {
    "h": 221.842,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.67388,
    "c": 0.16488,
    "h": 264.7
  },
  "luminance": 0.29868
}

Semantic roles & 50–950 ramp

primary

#6391FB

secondary

#F4E6C6

accent

#A000E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #6391FB

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

Preview Lab → · Contrast checker → · Palette generator →