#6387EB#6387EB

#6387EB is a light, vivid blue. Relative luminance 0.260; OKLCH L 64.4% C 0.155 H 267.1°. Best body text is #000000 at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#6387EB
RGB	rgb(99, 135, 235)
HSL	hsl(224, 77%, 65%)
HSV	hsv(224, 58%, 92%)
CMYK	cmyk(57.9%, 42.6%, 0%, 7.8%)
CIE-LAB	lab(58.01, 16.80, -54.41)
CIE-LCH	lch(58.01, 56.94, 287.16°)
OKLab	oklab(64.4% -0.0078 -0.1549)
OKLCH	oklch(64.4% 0.155 267.1)
XYZ	xyz(28.7999, 25.9764, 82.0774)
Luminance	0.2598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6387EB #EBC763

analogous

#63CBEB #6387EB #8363EB

triadic

#6387EB #EB6387 #87EB63

tetradic

#6387EB #EB63CB #EBC763 #63EB83

square

#6387EB #EB63CB #EBC763 #63EB83

split-complementary

#6387EB #EB8363 #CBEB63

monochromatic

#1843BC #2D5DE4 #6387EB #99B1F2 #CFDAF9

Accessibility & contrast

On white

3.39

#6387EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.20

#6387EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6387EB

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6387EB	#FFFFFF	#000000	##000000
##6387EB	1.00	3.39	6.20	6.20
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.20	21.00	1.00	1.00
##000000	6.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B92EF

Deuteranopia (green-blind)

#4886E9

Tritanopia (blue-blind)

#009DAD

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #6387eb;
/* rgb */ color: rgb(99, 135, 235);
/* oklch */ color: oklch(64.4% 0.155 267.1);

Tailwind

colors: {
  custom: {
    50: '#99a9f2',
    500: '#6387eb',
    950: '#000000',
  },
}

SCSS

$custom: #6387eb;
$custom-light: #99a9f2;
$custom-dark: #000000;

JSON

{
  "hex": "#6387eb",
  "rgb": {
    "r": 99,
    "g": 135,
    "b": 235
  },
  "hsl": {
    "h": 224.118,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.64395,
    "c": 0.15507,
    "h": 267.1
  },
  "luminance": 0.25979
}

Semantic roles & 50–950 ramp

primary

#6387EB

secondary

#ECE0BE

accent

#A30CDA

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #6387EB

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

Preview Lab → · Contrast checker → · Palette generator →