#6371F4#6371F4

#6371F4 is a mid, vivid blue. Relative luminance 0.210; OKLCH L 60.7% C 0.194 H 274.5°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#6371F4
RGB	rgb(99, 113, 244)
HSL	hsl(234, 87%, 67%)
HSV	hsv(234, 59%, 96%)
CMYK	cmyk(59.4%, 53.7%, 0%, 4.3%)
CIE-LAB	lab(52.94, 33.04, -67.56)
CIE-LCH	lch(52.94, 75.20, 296.06°)
OKLab	oklab(60.72% 0.0151 -0.1938)
OKLCH	oklch(60.72% 0.194 274.5)
XYZ	xyz(27.3745, 20.9924, 88.1798)
Luminance	0.2099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6371F4 #F4E663

analogous

#63B9F4 #6371F4 #9E63F4

triadic

#6371F4 #F46371 #71F463

tetradic

#6371F4 #F463B9 #F4E663 #63F49E

square

#6371F4 #F463B9 #F4E663 #63F49E

split-complementary

#6371F4 #F49E63 #B9F463

monochromatic

#0F21CE #2A3DF0 #6371F4 #9CA5F8 #D5D9FC

Accessibility & contrast

On white

4.04

#6371F4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#6371F4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6371F4

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6371F4	#FFFFFF	#000000	##000000
##6371F4	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1585F9

Deuteranopia (green-blind)

#0078F1

Tritanopia (blue-blind)

#0090A8

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #6371f4;
/* rgb */ color: rgb(99, 113, 244);
/* oklch */ color: oklch(60.7% 0.194 274.5);

Tailwind

colors: {
  custom: {
    50: '#9c99f9',
    500: '#6371f4',
    950: '#000000',
  },
}

SCSS

$custom: #6371f4;
$custom-light: #9c99f9;
$custom-dark: #000000;

JSON

{
  "hex": "#6371f4",
  "rgb": {
    "r": 99,
    "g": 113,
    "b": 244
  },
  "hsl": {
    "h": 234.207,
    "s": 86.826,
    "l": 67.255
  },
  "oklch": {
    "l": 0.6072,
    "c": 0.19437,
    "h": 274.5
  },
  "luminance": 0.20995
}

Semantic roles & 50–950 ramp

primary

#6371F4

secondary

#F0ECC3

accent

#CE02E3

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #6371F4

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

Preview Lab → · Contrast checker → · Palette generator →