#304387#304387

#304387 is a dark, moderate blue. Relative luminance 0.064; OKLCH L 40.5% C 0.116 H 269.0°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#304387
RGB	rgb(48, 67, 135)
HSL	hsl(227, 48%, 36%)
HSV	hsv(227, 64%, 53%)
CMYK	cmyk(64.4%, 50.4%, 0%, 47.1%)
CIE-LAB	lab(30.38, 15.48, -40.43)
CIE-LCH	lch(30.38, 43.29, 290.95°)
OKLab	oklab(40.55% -0.002 -0.1157)
OKLCH	oklch(40.55% 0.116 269)
XYZ	xyz(7.5978, 6.3913, 23.7502)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304387 #877430

analogous

#306E87 #304387 #483087

triadic

#304387 #873043 #438730

tetradic

#304387 #87306E #877430 #308748

square

#304387 #87306E #877430 #308748

split-complementary

#304387 #874830 #6E8730

monochromatic

#10162D #202D5A #304387 #4059B4 #687DC9

Accessibility & contrast

On white

9.22

#304387 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#304387 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304387

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304387	#FFFFFF	#000000	##FFFFFF
##304387	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4C89

Deuteranopia (green-blind)

#0D4486

Tritanopia (blue-blind)

#00535E

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #304387;
/* rgb */ color: rgb(48, 67, 135);
/* oklch */ color: oklch(40.5% 0.116 269.0);

Tailwind

colors: {
  custom: {
    50: '#7276aa',
    500: '#304387',
    950: '#000000',
  },
}

SCSS

$custom: #304387;
$custom-light: #7276aa;
$custom-dark: #000000;

JSON

{
  "hex": "#304387",
  "rgb": {
    "r": 48,
    "g": 67,
    "b": 135
  },
  "hsl": {
    "h": 226.897,
    "s": 47.541,
    "l": 35.882
  },
  "oklch": {
    "l": 0.40549,
    "c": 0.11573,
    "h": 269
  },
  "luminance": 0.06392
}

Semantic roles & 50–950 ramp

primary

#304387

secondary

#B19F62

accent

#BA51D7

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #304387

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

Preview Lab → · Contrast checker → · Palette generator →