#303663#303663

#303663 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.1% C 0.078 H 275.9°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#303663
RGB	rgb(48, 54, 99)
HSL	hsl(233, 35%, 29%)
HSV	hsv(233, 52%, 39%)
CMYK	cmyk(51.5%, 45.5%, 0%, 61.2%)
CIE-LAB	lab(24.22, 11.33, -27.48)
CIE-LCH	lch(24.22, 29.73, 292.41°)
OKLab	oklab(35.1% 0.008 -0.0778)
OKLCH	oklch(35.1% 0.078 275.9)
XYZ	xyz(4.7895, 4.1673, 12.3540)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303663 #635D30

analogous

#305063 #303663 #443063

triadic

#303663 #633036 #366330

tetradic

#303663 #633050 #635D30 #306344

square

#303663 #633050 #635D30 #306344

split-complementary

#303663 #634430 #506330

monochromatic

#0A0B15 #1C203A #303663 #444C8C #5D67B0

Accessibility & contrast

On white

11.45

#303663 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#303663 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303663

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303663	#FFFFFF	#000000	##FFFFFF
##303663	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#243C65

Deuteranopia (green-blind)

#203862

Tritanopia (blue-blind)

#1D3F47

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #303663;
/* rgb */ color: rgb(48, 54, 99);
/* oklch */ color: oklch(35.1% 0.078 275.9);

Tailwind

colors: {
  custom: {
    50: '#6c6c90',
    500: '#303663',
    950: '#000000',
  },
}

SCSS

$custom: #303663;
$custom-light: #6c6c90;
$custom-dark: #000000;

JSON

{
  "hex": "#303663",
  "rgb": {
    "r": 48,
    "g": 54,
    "b": 99
  },
  "hsl": {
    "h": 232.941,
    "s": 34.694,
    "l": 28.824
  },
  "oklch": {
    "l": 0.35097,
    "c": 0.07826,
    "h": 275.9
  },
  "luminance": 0.04168
}

Semantic roles & 50–950 ramp

primary

#303663

secondary

#948E5A

accent

#BE5DCB

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#07070C

muted

#7A7A7D

Preview Lab

Preview with #303663

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

Preview Lab → · Contrast checker → · Palette generator →