#304789#304789

#304789 is a dark, moderate blue. Relative luminance 0.069; OKLCH L 41.6% C 0.113 H 267.0°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#304789
RGB	rgb(48, 71, 137)
HSL	hsl(224, 48%, 36%)
HSV	hsv(224, 65%, 54%)
CMYK	cmyk(65%, 48.2%, 0%, 46.3%)
CIE-LAB	lab(31.67, 13.52, -39.59)
CIE-LCH	lch(31.67, 41.83, 288.85°)
OKLab	oklab(41.58% -0.006 -0.1132)
OKLCH	oklch(41.58% 0.113 267)
XYZ	xyz(7.9860, 6.9403, 24.5808)
Luminance	0.0694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304789 #897230

analogous

#307489 #304789 #463089

triadic

#304789 #893047 #478930

tetradic

#304789 #893074 #897230 #308946

square

#304789 #893074 #897230 #308946

split-complementary

#304789 #894630 #748930

monochromatic

#10182E #20305C #304789 #405EB6 #6982CA

Accessibility & contrast

On white

8.79

#304789 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#304789 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304789

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304789	#FFFFFF	#000000	##FFFFFF
##304789	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264F8B

Deuteranopia (green-blind)

#164788

Tritanopia (blue-blind)

#005661

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #304789;
/* rgb */ color: rgb(48, 71, 137);
/* oklch */ color: oklch(41.6% 0.113 267.0);

Tailwind

colors: {
  custom: {
    50: '#7279ac',
    500: '#304789',
    950: '#000000',
  },
}

SCSS

$custom: #304789;
$custom-light: #7279ac;
$custom-dark: #000000;

JSON

{
  "hex": "#304789",
  "rgb": {
    "r": 48,
    "g": 71,
    "b": 137
  },
  "hsl": {
    "h": 224.494,
    "s": 48.108,
    "l": 36.275
  },
  "oklch": {
    "l": 0.41576,
    "c": 0.11335,
    "h": 267
  },
  "luminance": 0.06941
}

Semantic roles & 50–950 ramp

primary

#304789

secondary

#B29D63

accent

#B550D8

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #304789

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

Preview Lab → · Contrast checker → · Palette generator →