#6366AF#6366AF

#6366AF is a mid, moderate blue. Relative luminance 0.153; OKLCH L 54.1% C 0.113 H 280.1°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#6366AF
RGB	rgb(99, 102, 175)
HSL	hsl(238, 32%, 54%)
HSV	hsv(238, 43%, 69%)
CMYK	cmyk(43.4%, 41.7%, 0%, 31.4%)
CIE-LAB	lab(45.97, 18.03, -39.38)
CIE-LCH	lch(45.97, 43.32, 294.60°)
OKLab	oklab(54.12% 0.0199 -0.1111)
OKLCH	oklch(54.12% 0.113 280.1)
XYZ	xyz(17.6325, 15.2497, 42.5636)
Luminance	0.1525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6366AF #AFAC63

analogous

#638CAF #6366AF #8663AF

triadic

#6366AF #AF6366 #66AF63

tetradic

#6366AF #AF638C #AFAC63 #63AF86

square

#6366AF #AF638C #AFAC63 #63AF86

split-complementary

#6366AF #AF8663 #8CAF63

monochromatic

#333564 #484B8D #6366AF #8B8EC4 #B4B5D8

Accessibility & contrast

On white

5.18

#6366AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#6366AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6366AF

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6366AF	#FFFFFF	#000000	##FFFFFF
##6366AF	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B70B2

Deuteranopia (green-blind)

#476AAD

Tritanopia (blue-blind)

#4B7582

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #6366af;
/* rgb */ color: rgb(99, 102, 175);
/* oklch */ color: oklch(54.1% 0.113 280.1);

Tailwind

colors: {
  custom: {
    50: '#9391c7',
    500: '#6366af',
    950: '#000000',
  },
}

SCSS

$custom: #6366af;
$custom-light: #9391c7;
$custom-dark: #000000;

JSON

{
  "hex": "#6366af",
  "rgb": {
    "r": 99,
    "g": 102,
    "b": 175
  },
  "hsl": {
    "h": 237.632,
    "s": 32.203,
    "l": 53.725
  },
  "oklch": {
    "l": 0.54117,
    "c": 0.1129,
    "h": 280.1
  },
  "luminance": 0.15251
}

Semantic roles & 50–950 ramp

primary

#6366AF

secondary

#C7C6A7

accent

#C45FC8

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0C13

muted

#7E7D82

Preview Lab

Preview with #6366AF

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

Preview Lab → · Contrast checker → · Palette generator →