#304DA7#304DA7

#304DA7 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.1% C 0.149 H 266.8°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#304DA7
RGB	rgb(48, 77, 167)
HSL	hsl(225, 55%, 42%)
HSV	hsv(225, 71%, 65%)
CMYK	cmyk(71.3%, 53.9%, 0%, 34.5%)
CIE-LAB	lab(35.45, 20.75, -51.69)
CIE-LCH	lch(35.45, 55.70, 291.87°)
OKLab	oklab(45.11% -0.0082 -0.1487)
OKLCH	oklch(45.11% 0.149 266.8)
XYZ	xyz(10.8454, 8.7250, 37.6643)
Luminance	0.0873 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304DA7 #A78A30

analogous

#3089A7 #304DA7 #4E30A7

triadic

#304DA7 #A7304D #4DA730

tetradic

#304DA7 #A73089 #A78A30 #30A74E

square

#304DA7 #A73089 #A78A30 #30A74E

split-complementary

#304DA7 #A74E30 #89A730

monochromatic

#152148 #223777 #304DA7 #4969CB #7990D8

Accessibility & contrast

On white

7.65

#304DA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#304DA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304DA7

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304DA7	#FFFFFF	#000000	##FFFFFF
##304DA7	1.00	7.65	2.75	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B59AA

Deuteranopia (green-blind)

#004EA5

Tritanopia (blue-blind)

#006372

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #304da7;
/* rgb */ color: rgb(48, 77, 167);
/* oklch */ color: oklch(45.1% 0.149 266.8);

Tailwind

colors: {
  custom: {
    50: '#787ec2',
    500: '#304da7',
    950: '#000000',
  },
}

SCSS

$custom: #304da7;
$custom-light: #787ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#304da7",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 167
  },
  "hsl": {
    "h": 225.378,
    "s": 55.349,
    "l": 42.157
  },
  "oklch": {
    "l": 0.45112,
    "c": 0.14893,
    "h": 266.8
  },
  "luminance": 0.08726
}

Semantic roles & 50–950 ramp

primary

#304DA7

secondary

#C1AE72

accent

#BA49DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #304DA7

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

Preview Lab → · Contrast checker → · Palette generator →