#304DBA#304DBA

#304DBA is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.7% C 0.175 H 267.6°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#304DBA
RGB	rgb(48, 77, 186)
HSL	hsl(227, 59%, 46%)
HSV	hsv(227, 74%, 73%)
CMYK	cmyk(74.2%, 58.6%, 0%, 27.1%)
CIE-LAB	lab(36.89, 27.85, -60.60)
CIE-LCH	lch(36.89, 66.70, 294.68°)
OKLab	oklab(46.65% -0.0072 -0.1749)
OKLCH	oklch(46.65% 0.175 267.6)
XYZ	xyz(12.7326, 9.4799, 47.6036)
Luminance	0.0948 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304DBA #BA9D30

analogous

#3092BA #304DBA #5830BA

triadic

#304DBA #BA304D #4DBA30

tetradic

#304DBA #BA3092 #BA9D30 #30BA58

square

#304DBA #BA3092 #BA9D30 #30BA58

split-complementary

#304DBA #BA5830 #92BA30

monochromatic

#172559 #233989 #304DBA #546FD3 #8598DF

Accessibility & contrast

On white

7.25

#304DBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#304DBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304DBA

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304DBA	#FFFFFF	#000000	##FFFFFF
##304DBA	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBE

Deuteranopia (green-blind)

#0051B8

Tritanopia (blue-blind)

#00687C

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #304dba;
/* rgb */ color: rgb(48, 77, 186);
/* oklch */ color: oklch(46.7% 0.175 267.6);

Tailwind

colors: {
  custom: {
    50: '#7c7ed0',
    500: '#304dba',
    950: '#000000',
  },
}

SCSS

$custom: #304dba;
$custom-light: #7c7ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#304dba",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 186
  },
  "hsl": {
    "h": 227.391,
    "s": 58.974,
    "l": 45.882
  },
  "oklch": {
    "l": 0.4665,
    "c": 0.17504,
    "h": 267.6
  },
  "luminance": 0.09481
}

Semantic roles & 50–950 ramp

primary

#304DBA

secondary

#C9B97D

accent

#C146E2

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #304DBA

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

Preview Lab → · Contrast checker → · Palette generator →