#6364CB#6364CB

#6364CB is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.5% C 0.156 H 279.6°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#6364CB
RGB	rgb(99, 100, 203)
HSL	hsl(239, 50%, 59%)
HSV	hsv(239, 51%, 80%)
CMYK	cmyk(51.2%, 50.7%, 0%, 20.4%)
CIE-LAB	lab(47.08, 27.87, -53.85)
CIE-LCH	lch(47.08, 60.63, 297.36°)
OKLab	oklab(55.47% 0.026 -0.1536)
OKLCH	oklch(55.47% 0.156 279.6)
XYZ	xyz(20.4789, 16.0776, 58.5125)
Luminance	0.1608 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6364CB #CBCA63

analogous

#6398CB #6364CB #9663CB

triadic

#6364CB #CB6364 #64CB63

tetradic

#6364CB #CB6398 #CBCA63 #63CB96

square

#6364CB #CB6398 #CBCA63 #63CB96

split-complementary

#6364CB #CB9663 #98CB63

monochromatic

#2D2E87 #3C3DB5 #6364CB #9192DA #BFBFEA

Accessibility & contrast

On white

4.98

#6364CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#6364CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6364CB

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6364CB	#FFFFFF	#000000	##FFFFFF
##6364CB	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3174CF

Deuteranopia (green-blind)

#266CC9

Tritanopia (blue-blind)

#387B8E

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #6364cb;
/* rgb */ color: rgb(99, 100, 203);
/* oklch */ color: oklch(55.5% 0.156 279.6);

Tailwind

colors: {
  custom: {
    50: '#9690db',
    500: '#6364cb',
    950: '#000000',
  },
}

SCSS

$custom: #6364cb;
$custom-light: #9690db;
$custom-dark: #000000;

JSON

{
  "hex": "#6364cb",
  "rgb": {
    "r": 99,
    "g": 100,
    "b": 203
  },
  "hsl": {
    "h": 239.423,
    "s": 50,
    "l": 59.216
  },
  "oklch": {
    "l": 0.55475,
    "c": 0.15576,
    "h": 279.6
  },
  "luminance": 0.16079
}

Semantic roles & 50–950 ramp

primary

#6364CB

secondary

#D9D9B1

accent

#D84EDA

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #6364CB

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

Preview Lab → · Contrast checker → · Palette generator →