#304CAE#304CAE

#304CAE is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.5% C 0.160 H 267.5°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#304CAE
RGB	rgb(48, 76, 174)
HSL	hsl(227, 57%, 44%)
HSV	hsv(227, 72%, 68%)
CMYK	cmyk(72.4%, 56.3%, 0%, 31.8%)
CIE-LAB	lab(35.70, 24.04, -55.46)
CIE-LCH	lch(35.70, 60.44, 293.43°)
OKLab	oklab(45.46% -0.0069 -0.1598)
OKLCH	oklch(45.46% 0.16 267.5)
XYZ	xyz(11.4407, 8.8521, 41.1419)
Luminance	0.0885 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304CAE #AE9230

analogous

#308BAE #304CAE #5330AE

triadic

#304CAE #AE304C #4CAE30

tetradic

#304CAE #AE308B #AE9230 #30AE53

square

#304CAE #AE308B #AE9230 #30AE53

split-complementary

#304CAE #AE5330 #8BAE30

monochromatic

#16224E #23377E #304CAE #4D6ACE #7D92DB

Accessibility & contrast

On white

7.58

#304CAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#304CAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304CAE

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304CAE	#FFFFFF	#000000	##FFFFFF
##304CAE	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB1

Deuteranopia (green-blind)

#004EAC

Tritanopia (blue-blind)

#006475

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #304cae;
/* rgb */ color: rgb(48, 76, 174);
/* oklch */ color: oklch(45.5% 0.160 267.5);

Tailwind

colors: {
  custom: {
    50: '#797dc7',
    500: '#304cae',
    950: '#000000',
  },
}

SCSS

$custom: #304cae;
$custom-light: #797dc7;
$custom-dark: #000000;

JSON

{
  "hex": "#304cae",
  "rgb": {
    "r": 48,
    "g": 76,
    "b": 174
  },
  "hsl": {
    "h": 226.667,
    "s": 56.757,
    "l": 43.529
  },
  "oklch": {
    "l": 0.45464,
    "c": 0.15994,
    "h": 267.5
  },
  "luminance": 0.08853
}

Semantic roles & 50–950 ramp

primary

#304CAE

secondary

#C4B376

accent

#BE48E0

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #304CAE

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

Preview Lab → · Contrast checker → · Palette generator →