#304D97#304D97

#304D97 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 43.9% C 0.126 H 265.4°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#304D97
RGB	rgb(48, 77, 151)
HSL	hsl(223, 52%, 39%)
HSV	hsv(223, 68%, 59%)
CMYK	cmyk(68.2%, 49%, 0%, 40.8%)
CIE-LAB	lab(34.33, 14.73, -43.86)
CIE-LCH	lch(34.33, 46.27, 288.57°)
OKLab	oklab(43.91% -0.01 -0.1257)
OKLCH	oklch(43.91% 0.126 265.4)
XYZ	xyz(9.4568, 8.1696, 30.3507)
Luminance	0.0817 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304D97 #977A30

analogous

#308197 #304D97 #473097

triadic

#304D97 #97304D #4D9730

tetradic

#304D97 #973081 #977A30 #309747

square

#304D97 #973081 #977A30 #309747

split-complementary

#304D97 #974730 #819730

monochromatic

#121E3A #213569 #304D97 #4166C3 #708BD2

Accessibility & contrast

On white

7.97

#304D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#304D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304D97

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304D97	#FFFFFF	#000000	##FFFFFF
##304D97	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26569A

Deuteranopia (green-blind)

#0D4C95

Tritanopia (blue-blind)

#005E6A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #304d97;
/* rgb */ color: rgb(48, 77, 151);
/* oklch */ color: oklch(43.9% 0.126 265.4);

Tailwind

colors: {
  custom: {
    50: '#747eb6',
    500: '#304d97',
    950: '#000000',
  },
}

SCSS

$custom: #304d97;
$custom-light: #747eb6;
$custom-dark: #000000;

JSON

{
  "hex": "#304d97",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 151
  },
  "hsl": {
    "h": 223.107,
    "s": 51.759,
    "l": 39.02
  },
  "oklch": {
    "l": 0.43908,
    "c": 0.12607,
    "h": 265.4
  },
  "luminance": 0.0817
}

Semantic roles & 50–950 ramp

primary

#304D97

secondary

#B9A36A

accent

#B34DDB

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #304D97

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

Preview Lab → · Contrast checker → · Palette generator →