#304FA7#304FA7

#304FA7 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.5% C 0.146 H 266.1°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#304FA7
RGB	rgb(48, 79, 167)
HSL	hsl(224, 55%, 42%)
HSV	hsv(224, 71%, 65%)
CMYK	cmyk(71.3%, 52.7%, 0%, 34.5%)
CIE-LAB	lab(36.00, 19.42, -50.80)
CIE-LCH	lch(36.00, 54.38, 290.93°)
OKLab	oklab(45.53% -0.01 -0.146)
OKLCH	oklch(45.53% 0.146 266.1)
XYZ	xyz(10.9875, 9.0092, 37.7116)
Luminance	0.0901 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304FA7 #A78830

analogous

#308BA7 #304FA7 #4D30A7

triadic

#304FA7 #A7304F #4FA730

tetradic

#304FA7 #A7308B #A78830 #30A74D

square

#304FA7 #A7308B #A78830 #30A74D

split-complementary

#304FA7 #A74D30 #8BA730

monochromatic

#152248 #223977 #304FA7 #496BCB #7992D8

Accessibility & contrast

On white

7.49

#304FA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#304FA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304FA7

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304FA7	#FFFFFF	#000000	##FFFFFF
##304FA7	1.00	7.49	2.80	7.49
#FFFFFF	7.49	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#155AAA

Deuteranopia (green-blind)

#004FA5

Tritanopia (blue-blind)

#006473

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #304fa7;
/* rgb */ color: rgb(48, 79, 167);
/* oklch */ color: oklch(45.5% 0.146 266.1);

Tailwind

colors: {
  custom: {
    50: '#787fc2',
    500: '#304fa7',
    950: '#000000',
  },
}

SCSS

$custom: #304fa7;
$custom-light: #787fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#304fa7",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 167
  },
  "hsl": {
    "h": 224.37,
    "s": 55.349,
    "l": 42.157
  },
  "oklch": {
    "l": 0.4553,
    "c": 0.14637,
    "h": 266.1
  },
  "luminance": 0.0901
}

Semantic roles & 50–950 ramp

primary

#304FA7

secondary

#C1AC72

accent

#B849DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #304FA7

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

Preview Lab → · Contrast checker → · Palette generator →