#304A8A#304A8A

#304A8A is a dark, moderate blue. Relative luminance 0.074; OKLCH L 42.3% C 0.111 H 265.3°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#304A8A
RGB	rgb(48, 74, 138)
HSL	hsl(223, 48%, 36%)
HSV	hsv(223, 65%, 54%)
CMYK	cmyk(65.2%, 46.4%, 0%, 45.9%)
CIE-LAB	lab(32.61, 11.87, -38.69)
CIE-LCH	lch(32.61, 40.47, 287.06°)
OKLab	oklab(42.32% -0.009 -0.1105)
OKLCH	oklch(42.32% 0.111 265.3)
XYZ	xyz(8.2536, 7.3602, 25.0255)
Luminance	0.0736 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304A8A #8A7030

analogous

#30778A #304A8A #43308A

triadic

#304A8A #8A304A #4A8A30

tetradic

#304A8A #8A3077 #8A7030 #308A43

square

#304A8A #8A3077 #8A7030 #308A43

split-complementary

#304A8A #8A4330 #778A30

monochromatic

#10192F #20325D #304A8A #4062B7 #6986CB

Accessibility & contrast

On white

8.49

#304A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#304A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304A8A

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304A8A	#FFFFFF	#000000	##FFFFFF
##304A8A	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B518C

Deuteranopia (green-blind)

#1C4989

Tritanopia (blue-blind)

#005963

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #304a8a;
/* rgb */ color: rgb(48, 74, 138);
/* oklch */ color: oklch(42.3% 0.111 265.3);

Tailwind

colors: {
  custom: {
    50: '#727cac',
    500: '#304a8a',
    950: '#000000',
  },
}

SCSS

$custom: #304a8a;
$custom-light: #727cac;
$custom-dark: #000000;

JSON

{
  "hex": "#304a8a",
  "rgb": {
    "r": 48,
    "g": 74,
    "b": 138
  },
  "hsl": {
    "h": 222.667,
    "s": 48.387,
    "l": 36.471
  },
  "oklch": {
    "l": 0.42319,
    "c": 0.11088,
    "h": 265.3
  },
  "luminance": 0.07361
}

Semantic roles & 50–950 ramp

primary

#304A8A

secondary

#B29C64

accent

#B150D8

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #304A8A

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

Preview Lab → · Contrast checker → · Palette generator →