#304ABC#304ABC

#304ABC is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.2% C 0.181 H 268.4°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#304ABC
RGB	rgb(48, 74, 188)
HSL	hsl(229, 59%, 46%)
HSV	hsv(229, 74%, 74%)
CMYK	cmyk(74.5%, 60.6%, 0%, 26.3%)
CIE-LAB	lab(36.28, 30.55, -62.77)
CIE-LCH	lch(36.28, 69.81, 295.95°)
OKLab	oklab(46.25% -0.0051 -0.1813)
OKLCH	oklch(46.25% 0.181 268.4)
XYZ	xyz(12.7417, 9.1554, 48.6629)
Luminance	0.0916 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304ABC #BCA230

analogous

#3090BC #304ABC #5C30BC

triadic

#304ABC #BC304A #4ABC30

tetradic

#304ABC #BC3090 #BCA230 #30BC5C

square

#304ABC #BC3090 #BCA230 #30BC5C

split-complementary

#304ABC #BC5C30 #90BC30

monochromatic

#17245A #24378B #304ABC #556DD4 #8697E0

Accessibility & contrast

On white

7.42

#304ABC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#304ABC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304ABC

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304ABC	#FFFFFF	#000000	##FFFFFF
##304ABC	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC0

Deuteranopia (green-blind)

#004FBA

Tritanopia (blue-blind)

#00677C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #304abc;
/* rgb */ color: rgb(48, 74, 188);
/* oklch */ color: oklch(46.2% 0.181 268.4);

Tailwind

colors: {
  custom: {
    50: '#7d7cd1',
    500: '#304abc',
    950: '#000000',
  },
}

SCSS

$custom: #304abc;
$custom-light: #7d7cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#304abc",
  "rgb": {
    "r": 48,
    "g": 74,
    "b": 188
  },
  "hsl": {
    "h": 228.857,
    "s": 59.322,
    "l": 46.275
  },
  "oklch": {
    "l": 0.46246,
    "c": 0.18137,
    "h": 268.4
  },
  "luminance": 0.09157
}

Semantic roles & 50–950 ramp

primary

#304ABC

secondary

#CABC7E

accent

#C545E3

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #304ABC

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

Preview Lab → · Contrast checker → · Palette generator →