#304597#304597

#304597 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.2% C 0.137 H 269.0°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#304597
RGB	rgb(48, 69, 151)
HSL	hsl(228, 52%, 39%)
HSV	hsv(228, 68%, 59%)
CMYK	cmyk(68.2%, 54.3%, 0%, 40.8%)
CIE-LAB	lab(32.07, 20.10, -47.51)
CIE-LCH	lch(32.07, 51.58, 292.93°)
OKLab	oklab(42.19% -0.0024 -0.1365)
OKLCH	oklch(42.19% 0.137 269)
XYZ	xyz(8.9311, 7.1181, 30.1754)
Luminance	0.0712 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304597 #978230

analogous

#307997 #304597 #4F3097

triadic

#304597 #973045 #459730

tetradic

#304597 #973079 #978230 #30974F

square

#304597 #973079 #978230 #30974F

split-complementary

#304597 #974F30 #799730

monochromatic

#121B3A #213069 #304597 #415CC3 #7084D2

Accessibility & contrast

On white

8.66

#304597 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#304597 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304597

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304597	#FFFFFF	#000000	##FFFFFF
##304597	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C509A

Deuteranopia (green-blind)

#004795

Tritanopia (blue-blind)

#005967

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #304597;
/* rgb */ color: rgb(48, 69, 151);
/* oklch */ color: oklch(42.2% 0.137 269.0);

Tailwind

colors: {
  custom: {
    50: '#7578b6',
    500: '#304597',
    950: '#000000',
  },
}

SCSS

$custom: #304597;
$custom-light: #7578b6;
$custom-dark: #000000;

JSON

{
  "hex": "#304597",
  "rgb": {
    "r": 48,
    "g": 69,
    "b": 151
  },
  "hsl": {
    "h": 227.767,
    "s": 51.759,
    "l": 39.02
  },
  "oklch": {
    "l": 0.42194,
    "c": 0.13653,
    "h": 269
  },
  "luminance": 0.07119
}

Semantic roles & 50–950 ramp

primary

#304597

secondary

#B9A96A

accent

#BE4DDB

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #304597

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

Preview Lab → · Contrast checker → · Palette generator →