#304AA7#304AA7

#304AA7 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.5% C 0.153 H 267.9°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#304AA7
RGB	rgb(48, 74, 167)
HSL	hsl(227, 55%, 42%)
HSV	hsv(227, 71%, 65%)
CMYK	cmyk(71.3%, 55.7%, 0%, 34.5%)
CIE-LAB	lab(34.63, 22.74, -53.02)
CIE-LCH	lch(34.63, 57.69, 293.22°)
OKLab	oklab(44.49% -0.0057 -0.1526)
OKLCH	oklch(44.49% 0.153 267.9)
XYZ	xyz(10.6403, 8.3149, 37.5959)
Luminance	0.0832 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304AA7 #A78D30

analogous

#3086A7 #304AA7 #5230A7

triadic

#304AA7 #A7304A #4AA730

tetradic

#304AA7 #A73086 #A78D30 #30A752

square

#304AA7 #A73086 #A78D30 #30A752

split-complementary

#304AA7 #A75230 #86A730

monochromatic

#152048 #223577 #304AA7 #4966CB #798ED8

Accessibility & contrast

On white

7.89

#304AA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#304AA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304AA7

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304AA7	#FFFFFF	#000000	##FFFFFF
##304AA7	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AA

Deuteranopia (green-blind)

#004CA5

Tritanopia (blue-blind)

#006171

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #304aa7;
/* rgb */ color: rgb(48, 74, 167);
/* oklch */ color: oklch(44.5% 0.153 267.9);

Tailwind

colors: {
  custom: {
    50: '#787cc2',
    500: '#304aa7',
    950: '#000000',
  },
}

SCSS

$custom: #304aa7;
$custom-light: #787cc2;
$custom-dark: #000000;

JSON

{
  "hex": "#304aa7",
  "rgb": {
    "r": 48,
    "g": 74,
    "b": 167
  },
  "hsl": {
    "h": 226.891,
    "s": 55.349,
    "l": 42.157
  },
  "oklch": {
    "l": 0.44494,
    "c": 0.15276,
    "h": 267.9
  },
  "luminance": 0.08316
}

Semantic roles & 50–950 ramp

primary

#304AA7

secondary

#C1B072

accent

#BE49DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #304AA7

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

Preview Lab → · Contrast checker → · Palette generator →