#303A73#303A73

#303A73 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.1% C 0.098 H 273.2°. Best body text is #FFFFFF at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#303A73
RGB	rgb(48, 58, 115)
HSL	hsl(231, 41%, 32%)
HSV	hsv(231, 58%, 45%)
CMYK	cmyk(58.3%, 49.6%, 0%, 54.9%)
CIE-LAB	lab(26.42, 14.27, -34.24)
CIE-LCH	lch(26.42, 37.09, 292.63°)
OKLab	oklab(37.11% 0.0055 -0.0976)
OKLCH	oklch(37.11% 0.098 273.2)
XYZ	xyz(5.8255, 4.8919, 16.8536)
Luminance	0.0489 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303A73 #736930

analogous

#305C73 #303A73 #483073

triadic

#303A73 #73303A #3A7330

tetradic

#303A73 #73305C #736930 #307348

square

#303A73 #73305C #736930 #307348

split-complementary

#303A73 #734830 #5C7330

monochromatic

#0C0E1D #1E2448 #303A73 #42509E #616EBD

Accessibility & contrast

On white

10.61

#303A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#303A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303A73

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303A73	#FFFFFF	#000000	##FFFFFF
##303A73	1.00	10.61	1.98	10.61
#FFFFFF	10.61	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4175

Deuteranopia (green-blind)

#163C72

Tritanopia (blue-blind)

#0B4751

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #303a73;
/* rgb */ color: rgb(48, 58, 115);
/* oklch */ color: oklch(37.1% 0.098 273.2);

Tailwind

colors: {
  custom: {
    50: '#6e6f9c',
    500: '#303a73',
    950: '#000000',
  },
}

SCSS

$custom: #303a73;
$custom-light: #6e6f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#303a73",
  "rgb": {
    "r": 48,
    "g": 58,
    "b": 115
  },
  "hsl": {
    "h": 231.045,
    "s": 41.104,
    "l": 31.961
  },
  "oklch": {
    "l": 0.3711,
    "c": 0.09779,
    "h": 273.2
  },
  "luminance": 0.04892
}

Semantic roles & 50–950 ramp

primary

#303A73

secondary

#A4995B

accent

#BF57D1

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#08070E

muted

#7B7A7E

Preview Lab

Preview with #303A73

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

Preview Lab → · Contrast checker → · Palette generator →