#304366#304366

#304366 is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.4% C 0.065 H 262.0°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#304366
RGB	rgb(48, 67, 102)
HSL	hsl(219, 36%, 29%)
HSV	hsv(219, 53%, 40%)
CMYK	cmyk(52.9%, 34.3%, 0%, 60%)
CIE-LAB	lab(28.38, 3.52, -22.84)
CIE-LCH	lch(28.38, 23.11, 278.76°)
OKLab	oklab(38.37% -0.009 -0.0642)
OKLCH	oklch(38.37% 0.065 262)
XYZ	xyz(5.6236, 5.6016, 13.3527)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304366 #665330

analogous

#305E66 #304366 #383066

triadic

#304366 #663043 #436630

tetradic

#304366 #66305E #665330 #306638

square

#304366 #66305E #665330 #306638

split-complementary

#304366 #663830 #5E6630

monochromatic

#0A0E15 #1C283C #304366 #445E90 #5D7CB3

Accessibility & contrast

On white

9.90

#304366 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#304366 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304366

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304366	#FFFFFF	#000000	##FFFFFF
##304366	1.00	9.90	2.12	9.90
#FFFFFF	9.90	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#364667

Deuteranopia (green-blind)

#2F4165

Tritanopia (blue-blind)

#184B50

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #304366;
/* rgb */ color: rgb(48, 67, 102);
/* oklch */ color: oklch(38.4% 0.065 262.0);

Tailwind

colors: {
  custom: {
    50: '#6c7692',
    500: '#304366',
    950: '#000000',
  },
}

SCSS

$custom: #304366;
$custom-light: #6c7692;
$custom-dark: #000000;

JSON

{
  "hex": "#304366",
  "rgb": {
    "r": 48,
    "g": 67,
    "b": 102
  },
  "hsl": {
    "h": 218.889,
    "s": 36,
    "l": 29.412
  },
  "oklch": {
    "l": 0.38367,
    "c": 0.06486,
    "h": 262
  },
  "luminance": 0.05602
}

Semantic roles & 50–950 ramp

primary

#304366

secondary

#97825A

accent

#A55CCC

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#07080D

muted

#7A7B7D

Preview Lab

Preview with #304366

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

Preview Lab → · Contrast checker → · Palette generator →