#304AAA#304AAA

#304AAA is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.7% C 0.157 H 268.0°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#304AAA
RGB	rgb(48, 74, 170)
HSL	hsl(227, 56%, 43%)
HSV	hsv(227, 72%, 67%)
CMYK	cmyk(71.8%, 56.5%, 0%, 33.3%)
CIE-LAB	lab(34.86, 23.87, -54.44)
CIE-LCH	lch(34.86, 59.44, 293.67°)
OKLab	oklab(44.74% -0.0055 -0.1568)
OKLCH	oklch(44.74% 0.157 268)
XYZ	xyz(10.9209, 8.4271, 39.0735)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304AAA #AA9030

analogous

#3087AA #304AAA #5330AA

triadic

#304AAA #AA304A #4AAA30

tetradic

#304AAA #AA3087 #AA9030 #30AA53

square

#304AAA #AA3087 #AA9030 #30AA53

split-complementary

#304AAA #AA5330 #87AA30

monochromatic

#15204B #23357A #304AAA #4B67CC #7B8FDA

Accessibility & contrast

On white

7.82

#304AAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#304AAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304AAA

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304AAA	#FFFFFF	#000000	##FFFFFF
##304AAA	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058AD

Deuteranopia (green-blind)

#004DA8

Tritanopia (blue-blind)

#006172

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #304aaa;
/* rgb */ color: rgb(48, 74, 170);
/* oklch */ color: oklch(44.7% 0.157 268.0);

Tailwind

colors: {
  custom: {
    50: '#797cc4',
    500: '#304aaa',
    950: '#000000',
  },
}

SCSS

$custom: #304aaa;
$custom-light: #797cc4;
$custom-dark: #000000;

JSON

{
  "hex": "#304aaa",
  "rgb": {
    "r": 48,
    "g": 74,
    "b": 170
  },
  "hsl": {
    "h": 227.213,
    "s": 55.963,
    "l": 42.745
  },
  "oklch": {
    "l": 0.44736,
    "c": 0.15693,
    "h": 268
  },
  "luminance": 0.08428
}

Semantic roles & 50–950 ramp

primary

#304AAA

secondary

#C2B174

accent

#BF49DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #304AAA

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

Preview Lab → · Contrast checker → · Palette generator →