#304C97#304C97

#304C97 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.7% C 0.127 H 265.9°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#304C97
RGB	rgb(48, 76, 151)
HSL	hsl(224, 52%, 39%)
HSV	hsv(224, 68%, 59%)
CMYK	cmyk(68.2%, 49.7%, 0%, 40.8%)
CIE-LAB	lab(34.05, 15.40, -44.33)
CIE-LCH	lch(34.05, 46.93, 289.16°)
OKLab	oklab(43.69% -0.0091 -0.127)
OKLCH	oklch(43.69% 0.127 265.9)
XYZ	xyz(9.3873, 8.0307, 30.3275)
Luminance	0.0803 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304C97 #977B30

analogous

#308097 #304C97 #483097

triadic

#304C97 #97304C #4C9730

tetradic

#304C97 #973080 #977B30 #309748

square

#304C97 #973080 #977B30 #309748

split-complementary

#304C97 #974830 #809730

monochromatic

#121D3A #213569 #304C97 #4165C3 #708AD2

Accessibility & contrast

On white

8.06

#304C97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#304C97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304C97

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304C97	#FFFFFF	#000000	##FFFFFF
##304C97	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23559A

Deuteranopia (green-blind)

#084C95

Tritanopia (blue-blind)

#005D6A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #304c97;
/* rgb */ color: rgb(48, 76, 151);
/* oklch */ color: oklch(43.7% 0.127 265.9);

Tailwind

colors: {
  custom: {
    50: '#747db6',
    500: '#304c97',
    950: '#000000',
  },
}

SCSS

$custom: #304c97;
$custom-light: #747db6;
$custom-dark: #000000;

JSON

{
  "hex": "#304c97",
  "rgb": {
    "r": 48,
    "g": 76,
    "b": 151
  },
  "hsl": {
    "h": 223.689,
    "s": 51.759,
    "l": 39.02
  },
  "oklch": {
    "l": 0.43689,
    "c": 0.12736,
    "h": 265.9
  },
  "luminance": 0.08032
}

Semantic roles & 50–950 ramp

primary

#304C97

secondary

#B9A46A

accent

#B44DDB

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #304C97

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

Preview Lab → · Contrast checker → · Palette generator →