#6371C7#6371C7

#6371C7 is a mid, vivid blue. Relative luminance 0.186; OKLCH L 57.8% C 0.132 H 274.5°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#6371C7
RGB	rgb(99, 113, 199)
HSL	hsl(232, 47%, 58%)
HSV	hsv(232, 50%, 78%)
CMYK	cmyk(50.3%, 43.2%, 0%, 22%)
CIE-LAB	lab(50.20, 18.63, -46.57)
CIE-LCH	lch(50.20, 50.16, 291.81°)
OKLab	oklab(57.77% 0.0105 -0.1321)
OKLCH	oklch(57.77% 0.132 274.5)
XYZ	xyz(21.3563, 18.5851, 56.4837)
Luminance	0.1859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6371C7 #C7B963

analogous

#63A3C7 #6371C7 #8763C7

triadic

#6371C7 #C76371 #71C763

tetradic

#6371C7 #C763A3 #C7B963 #63C787

square

#6371C7 #C763A3 #C7B963 #63C787

split-complementary

#6371C7 #C78763 #A3C763

monochromatic

#2E3A81 #3F4EAE #6371C7 #909AD7 #BDC3E7

Accessibility & contrast

On white

4.45

#6371C7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#6371C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6371C7

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6371C7	#FFFFFF	#000000	##000000
##6371C7	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7CCA

Deuteranopia (green-blind)

#4474C5

Tritanopia (blue-blind)

#3A8392

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #6371c7;
/* rgb */ color: rgb(99, 113, 199);
/* oklch */ color: oklch(57.8% 0.132 274.5);

Tailwind

colors: {
  custom: {
    50: '#9599d8',
    500: '#6371c7',
    950: '#000000',
  },
}

SCSS

$custom: #6371c7;
$custom-light: #9599d8;
$custom-dark: #000000;

JSON

{
  "hex": "#6371c7",
  "rgb": {
    "r": 99,
    "g": 113,
    "b": 199
  },
  "hsl": {
    "h": 231.6,
    "s": 47.17,
    "l": 58.431
  },
  "oklch": {
    "l": 0.57765,
    "c": 0.13249,
    "h": 274.5
  },
  "luminance": 0.18586
}

Semantic roles & 50–950 ramp

primary

#6371C7

secondary

#D7D1AF

accent

#C451D7

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0D14

muted

#7E7E83

Preview Lab

Preview with #6371C7

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

Preview Lab → · Contrast checker → · Palette generator →