#304BBD#304BBD

#304BBD is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.5% C 0.181 H 268.2°. Best body text is #FFFFFF at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#304BBD
RGB	rgb(48, 75, 189)
HSL	hsl(229, 59%, 46%)
HSV	hsv(229, 75%, 74%)
CMYK	cmyk(74.6%, 60.3%, 0%, 25.9%)
CIE-LAB	lab(36.62, 30.26, -62.81)
CIE-LCH	lch(36.62, 69.72, 295.73°)
OKLab	oklab(46.52% -0.0058 -0.1814)
OKLCH	oklch(46.52% 0.181 268.2)
XYZ	xyz(12.9171, 9.3333, 49.2550)
Luminance	0.0934 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304BBD #BDA230

analogous

#3092BD #304BBD #5C30BD

triadic

#304BBD #BD304B #4BBD30

tetradic

#304BBD #BD3092 #BDA230 #30BD5C

square

#304BBD #BD3092 #BDA230 #30BD5C

split-complementary

#304BBD #BD5C30 #92BD30

monochromatic

#17245B #24388C #304BBD #566ED4 #8798E0

Accessibility & contrast

On white

7.32

#304BBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#304BBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304BBD

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304BBD	#FFFFFF	#000000	##FFFFFF
##304BBD	1.00	7.32	2.87	7.32
#FFFFFF	7.32	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC1

Deuteranopia (green-blind)

#0050BB

Tritanopia (blue-blind)

#00687D

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #304bbd;
/* rgb */ color: rgb(48, 75, 189);
/* oklch */ color: oklch(46.5% 0.181 268.2);

Tailwind

colors: {
  custom: {
    50: '#7d7dd2',
    500: '#304bbd',
    950: '#000000',
  },
}

SCSS

$custom: #304bbd;
$custom-light: #7d7dd2;
$custom-dark: #000000;

JSON

{
  "hex": "#304bbd",
  "rgb": {
    "r": 48,
    "g": 75,
    "b": 189
  },
  "hsl": {
    "h": 228.511,
    "s": 59.494,
    "l": 46.471
  },
  "oklch": {
    "l": 0.46521,
    "c": 0.18149,
    "h": 268.2
  },
  "luminance": 0.09335
}

Semantic roles & 50–950 ramp

primary

#304BBD

secondary

#CABC7F

accent

#C545E3

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #304BBD

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

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