#6377CE#6377CE

#6377CE is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.4% C 0.135 H 272.0°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#6377CE
RGB	rgb(99, 119, 206)
HSL	hsl(229, 52%, 60%)
HSV	hsv(229, 52%, 81%)
CMYK	cmyk(51.9%, 42.2%, 0%, 19.2%)
CIE-LAB	lab(52.18, 17.17, -47.41)
CIE-LCH	lch(52.18, 50.43, 289.91°)
OKLab	oklab(59.4% 0.0046 -0.1345)
OKLCH	oklch(59.4% 0.135 272)
XYZ	xyz(22.8794, 20.3010, 61.0934)
Luminance	0.2030 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6377CE #CEBA63

analogous

#63ADCE #6377CE #8563CE

triadic

#6377CE #CE6377 #77CE63

tetradic

#6377CE #CE63AD #CEBA63 #63CE85

square

#6377CE #CE63AD #CEBA63 #63CE85

split-complementary

#6377CE #CE8563 #ADCE63

monochromatic

#2C3D8B #3A52BA #6377CE #92A0DD #C0C8EB

Accessibility & contrast

On white

4.15

#6377CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#6377CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6377CE

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6377CE	#FFFFFF	#000000	##000000
##6377CE	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5381D1

Deuteranopia (green-blind)

#4778CC

Tritanopia (blue-blind)

#328A98

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #6377ce;
/* rgb */ color: rgb(99, 119, 206);
/* oklch */ color: oklch(59.4% 0.135 272.0);

Tailwind

colors: {
  custom: {
    50: '#969ddd',
    500: '#6377ce',
    950: '#000000',
  },
}

SCSS

$custom: #6377ce;
$custom-light: #969ddd;
$custom-dark: #000000;

JSON

{
  "hex": "#6377ce",
  "rgb": {
    "r": 99,
    "g": 119,
    "b": 206
  },
  "hsl": {
    "h": 228.785,
    "s": 52.195,
    "l": 59.804
  },
  "oklch": {
    "l": 0.59402,
    "c": 0.1346,
    "h": 272
  },
  "luminance": 0.20303
}

Semantic roles & 50–950 ramp

primary

#6377CE

secondary

#DBD3B2

accent

#C14CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #6377CE

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

Preview Lab → · Contrast checker → · Palette generator →