#304DA2#304DA2

#304DA2 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.7% C 0.142 H 266.5°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#304DA2
RGB	rgb(48, 77, 162)
HSL	hsl(225, 54%, 41%)
HSV	hsv(225, 70%, 64%)
CMYK	cmyk(70.4%, 52.5%, 0%, 36.5%)
CIE-LAB	lab(35.09, 18.87, -49.28)
CIE-LCH	lch(35.09, 52.77, 290.95°)
OKLab	oklab(44.73% -0.0087 -0.1416)
OKLCH	oklch(44.73% 0.142 266.5)
XYZ	xyz(10.3921, 8.5437, 35.2768)
Luminance	0.0854 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304DA2 #A28530

analogous

#3086A2 #304DA2 #4C30A2

triadic

#304DA2 #A2304D #4DA230

tetradic

#304DA2 #A23086 #A28530 #30A24C

square

#304DA2 #A23086 #A28530 #30A24C

split-complementary

#304DA2 #A24C30 #86A230

monochromatic

#142044 #223773 #304DA2 #4768C8 #768FD6

Accessibility & contrast

On white

7.75

#304DA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#304DA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304DA2

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304DA2	#FFFFFF	#000000	##FFFFFF
##304DA2	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1758A5

Deuteranopia (green-blind)

#004EA0

Tritanopia (blue-blind)

#006170

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #304da2;
/* rgb */ color: rgb(48, 77, 162);
/* oklch */ color: oklch(44.7% 0.142 266.5);

Tailwind

colors: {
  custom: {
    50: '#777ebe',
    500: '#304da2',
    950: '#000000',
  },
}

SCSS

$custom: #304da2;
$custom-light: #777ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#304da2",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 162
  },
  "hsl": {
    "h": 224.737,
    "s": 54.286,
    "l": 41.176
  },
  "oklch": {
    "l": 0.44726,
    "c": 0.14187,
    "h": 266.5
  },
  "luminance": 0.08545
}

Semantic roles & 50–950 ramp

primary

#304DA2

secondary

#BEAA6F

accent

#B84ADE

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #304DA2

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

Preview Lab → · Contrast checker → · Palette generator →