#304388#304388

#304388 is a dark, moderate blue. Relative luminance 0.064; OKLCH L 40.6% C 0.117 H 269.1°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#304388
RGB	rgb(48, 67, 136)
HSL	hsl(227, 48%, 36%)
HSV	hsv(227, 65%, 53%)
CMYK	cmyk(64.7%, 50.7%, 0%, 46.7%)
CIE-LAB	lab(30.45, 15.85, -40.94)
CIE-LCH	lch(30.45, 43.90, 291.16°)
OKLab	oklab(40.62% -0.0019 -0.1172)
OKLCH	oklch(40.62% 0.117 269.1)
XYZ	xyz(7.6685, 6.4196, 24.1228)
Luminance	0.0642 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304388 #887530

analogous

#306F88 #304388 #493088

triadic

#304388 #883043 #438830

tetradic

#304388 #88306F #887530 #308849

square

#304388 #88306F #887530 #308849

split-complementary

#304388 #884930 #6F8830

monochromatic

#10162E #202D5B #304388 #4059B5 #697ECA

Accessibility & contrast

On white

9.19

#304388 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#304388 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304388

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304388	#FFFFFF	#000000	##FFFFFF
##304388	1.00	9.19	2.28	9.19
#FFFFFF	9.19	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4C8B

Deuteranopia (green-blind)

#0A4487

Tritanopia (blue-blind)

#00535F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #304388;
/* rgb */ color: rgb(48, 67, 136);
/* oklch */ color: oklch(40.6% 0.117 269.1);

Tailwind

colors: {
  custom: {
    50: '#7276ab',
    500: '#304388',
    950: '#000000',
  },
}

SCSS

$custom: #304388;
$custom-light: #7276ab;
$custom-dark: #000000;

JSON

{
  "hex": "#304388",
  "rgb": {
    "r": 48,
    "g": 67,
    "b": 136
  },
  "hsl": {
    "h": 227.045,
    "s": 47.826,
    "l": 36.078
  },
  "oklch": {
    "l": 0.40623,
    "c": 0.11723,
    "h": 269.1
  },
  "luminance": 0.0642
}

Semantic roles & 50–950 ramp

primary

#304388

secondary

#B1A063

accent

#BA50D7

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #304388

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

Preview Lab → · Contrast checker → · Palette generator →