#304F90#304F90

#304F90 is a dark, moderate blue. Relative luminance 0.082; OKLCH L 43.9% C 0.113 H 263.3°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#304F90
RGB	rgb(48, 79, 144)
HSL	hsl(221, 50%, 38%)
HSV	hsv(221, 67%, 56%)
CMYK	cmyk(66.7%, 45.1%, 0%, 43.5%)
CIE-LAB	lab(34.46, 10.78, -39.40)
CIE-LCH	lch(34.46, 40.85, 285.30°)
OKLab	oklab(43.86% -0.0132 -0.1125)
OKLCH	oklch(43.86% 0.113 263.3)
XYZ	xyz(9.0472, 8.2331, 27.4925)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304F90 #907130

analogous

#307F90 #304F90 #413090

triadic

#304F90 #90304F #4F9030

tetradic

#304F90 #90307F #907130 #309041

square

#304F90 #90307F #907130 #309041

split-complementary

#304F90 #904130 #7F9030

monochromatic

#111D34 #213662 #304F90 #3F68BE #6C8CCE

Accessibility & contrast

On white

7.93

#304F90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#304F90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304F90

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304F90	#FFFFFF	#000000	##FFFFFF
##304F90	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305692

Deuteranopia (green-blind)

#204D8F

Tritanopia (blue-blind)

#005E68

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #304f90;
/* rgb */ color: rgb(48, 79, 144);
/* oklch */ color: oklch(43.9% 0.113 263.3);

Tailwind

colors: {
  custom: {
    50: '#737fb1',
    500: '#304f90',
    950: '#000000',
  },
}

SCSS

$custom: #304f90;
$custom-light: #737fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#304f90",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 144
  },
  "hsl": {
    "h": 220.625,
    "s": 50,
    "l": 37.647
  },
  "oklch": {
    "l": 0.43862,
    "c": 0.1133,
    "h": 263.3
  },
  "luminance": 0.08234
}

Semantic roles & 50–950 ramp

primary

#304F90

secondary

#B59C66

accent

#AD4EDA

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #304F90

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

Preview Lab → · Contrast checker → · Palette generator →