#6377EF#6377EF

#6377EF is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.5% C 0.180 H 272.9°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#6377EF
RGB	rgb(99, 119, 239)
HSL	hsl(231, 81%, 66%)
HSV	hsv(231, 59%, 94%)
CMYK	cmyk(58.6%, 50.2%, 0%, 6.3%)
CIE-LAB	lab(54.11, 27.78, -62.89)
CIE-LCH	lch(54.11, 68.75, 293.83°)
OKLab	oklab(61.49% 0.009 -0.18)
OKLCH	oklch(61.49% 0.18 272.9)
XYZ	xyz(27.3173, 22.0762, 84.4662)
Luminance	0.2208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6377EF #EFDB63

analogous

#63BDEF #6377EF #9563EF

triadic

#6377EF #EF6377 #77EF63

tetradic

#6377EF #EF63BD #EFDB63 #63EF95

square

#6377EF #EF63BD #EFDB63 #63EF95

split-complementary

#6377EF #EF9563 #BDEF63

monochromatic

#142DC4 #2B47E9 #6377EF #9BA7F5 #D2D8FA

Accessibility & contrast

On white

3.88

#6377EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#6377EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6377EF

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6377EF	#FFFFFF	#000000	##000000
##6377EF	1.00	3.88	5.42	5.42
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3688F3

Deuteranopia (green-blind)

#167CEC

Tritanopia (blue-blind)

#0092A8

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #6377ef;
/* rgb */ color: rgb(99, 119, 239);
/* oklch */ color: oklch(61.5% 0.180 272.9);

Tailwind

colors: {
  custom: {
    50: '#9b9ef5',
    500: '#6377ef',
    950: '#000000',
  },
}

SCSS

$custom: #6377ef;
$custom-light: #9b9ef5;
$custom-dark: #000000;

JSON

{
  "hex": "#6377ef",
  "rgb": {
    "r": 99,
    "g": 119,
    "b": 239
  },
  "hsl": {
    "h": 231.429,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.61494,
    "c": 0.18021,
    "h": 272.9
  },
  "luminance": 0.22078
}

Semantic roles & 50–950 ramp

primary

#6377EF

secondary

#EEE7C0

accent

#BF08DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #6377EF

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

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