#304598#304598

#304598 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.3% C 0.138 H 269.0°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#304598
RGB	rgb(48, 69, 152)
HSL	hsl(228, 52%, 39%)
HSV	hsv(228, 68%, 60%)
CMYK	cmyk(68.4%, 54.6%, 0%, 40.4%)
CIE-LAB	lab(32.15, 20.47, -48.00)
CIE-LCH	lch(32.15, 52.18, 293.10°)
OKLab	oklab(42.27% -0.0023 -0.1379)
OKLCH	oklch(42.27% 0.138 269)
XYZ	xyz(9.0126, 7.1508, 30.6049)
Luminance	0.0715 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304598 #988330

analogous

#307998 #304598 #4F3098

triadic

#304598 #983045 #459830

tetradic

#304598 #983079 #988330 #30984F

square

#304598 #983079 #988330 #30984F

split-complementary

#304598 #984F30 #799830

monochromatic

#131B3B #213069 #304598 #425CC3 #7084D2

Accessibility & contrast

On white

8.64

#304598 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#304598 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304598

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304598	#FFFFFF	#000000	##FFFFFF
##304598	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09519B

Deuteranopia (green-blind)

#004796

Tritanopia (blue-blind)

#005967

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #304598;
/* rgb */ color: rgb(48, 69, 152);
/* oklch */ color: oklch(42.3% 0.138 269.0);

Tailwind

colors: {
  custom: {
    50: '#7578b7',
    500: '#304598',
    950: '#000000',
  },
}

SCSS

$custom: #304598;
$custom-light: #7578b7;
$custom-dark: #000000;

JSON

{
  "hex": "#304598",
  "rgb": {
    "r": 48,
    "g": 69,
    "b": 152
  },
  "hsl": {
    "h": 227.885,
    "s": 52,
    "l": 39.216
  },
  "oklch": {
    "l": 0.42272,
    "c": 0.13797,
    "h": 269
  },
  "luminance": 0.07152
}

Semantic roles & 50–950 ramp

primary

#304598

secondary

#BAAA6A

accent

#BF4CDB

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #304598

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

Preview Lab → · Contrast checker → · Palette generator →