#304189#304189

#304189 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.3% C 0.121 H 270.2°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#304189
RGB	rgb(48, 65, 137)
HSL	hsl(229, 48%, 36%)
HSV	hsv(229, 65%, 54%)
CMYK	cmyk(65%, 52.6%, 0%, 46.3%)
CIE-LAB	lab(29.95, 17.58, -42.36)
CIE-LCH	lch(29.95, 45.86, 292.54°)
OKLab	oklab(40.27% 0.0003 -0.1214)
OKLCH	oklch(40.27% 0.121 270.2)
XYZ	xyz(7.6231, 6.2145, 24.4598)
Luminance	0.0621 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304189 #897830

analogous

#306E89 #304189 #4C3089

triadic

#304189 #893041 #418930

tetradic

#304189 #89306E #897830 #30894C

square

#304189 #89306E #897830 #30894C

split-complementary

#304189 #894C30 #6E8930

monochromatic

#10162E #202B5C #304189 #4057B6 #697CCA

Accessibility & contrast

On white

9.36

#304189 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#304189 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304189

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304189	#FFFFFF	#000000	##FFFFFF
##304189	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184B8C

Deuteranopia (green-blind)

#004388

Tritanopia (blue-blind)

#00525E

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #304189;
/* rgb */ color: rgb(48, 65, 137);
/* oklch */ color: oklch(40.3% 0.121 270.2);

Tailwind

colors: {
  custom: {
    50: '#7275ac',
    500: '#304189',
    950: '#000000',
  },
}

SCSS

$custom: #304189;
$custom-light: #7275ac;
$custom-dark: #000000;

JSON

{
  "hex": "#304189",
  "rgb": {
    "r": 48,
    "g": 65,
    "b": 137
  },
  "hsl": {
    "h": 228.539,
    "s": 48.108,
    "l": 36.275
  },
  "oklch": {
    "l": 0.40266,
    "c": 0.12142,
    "h": 270.2
  },
  "luminance": 0.06215
}

Semantic roles & 50–950 ramp

primary

#304189

secondary

#B2A363

accent

#BE50D8

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #304189

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

Preview Lab → · Contrast checker → · Palette generator →