#304F82#304F82

#304F82 is a dark, moderate blue. Relative luminance 0.078; OKLCH L 42.9% C 0.093 H 259.9°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#304F82
RGB	rgb(48, 79, 130)
HSL	hsl(217, 46%, 35%)
HSV	hsv(217, 63%, 51%)
CMYK	cmyk(63.1%, 39.2%, 0%, 49%)
CIE-LAB	lab(33.63, 5.59, -32.15)
CIE-LCH	lch(33.63, 32.63, 279.87°)
OKLab	oklab(42.95% -0.0163 -0.0912)
OKLCH	oklch(42.95% 0.093 259.9)
XYZ	xyz(8.0428, 7.8313, 22.2025)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304F82 #826330

analogous

#307882 #304F82 #3A3082

triadic

#304F82 #82304F #4F8230

tetradic

#304F82 #823078 #826330 #30823A

square

#304F82 #823078 #826330 #30823A

split-complementary

#304F82 #823A30 #788230

monochromatic

#0F1929 #1F3455 #304F82 #416AAF #668AC6

Accessibility & contrast

On white

8.18

#304F82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#304F82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304F82

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304F82	#FFFFFF	#000000	##FFFFFF
##304F82	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395384

Deuteranopia (green-blind)

#2E4C81

Tritanopia (blue-blind)

#005A62

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #304f82;
/* rgb */ color: rgb(48, 79, 130);
/* oklch */ color: oklch(42.9% 0.093 259.9);

Tailwind

colors: {
  custom: {
    50: '#7080a6',
    500: '#304f82',
    950: '#000000',
  },
}

SCSS

$custom: #304f82;
$custom-light: #7080a6;
$custom-dark: #000000;

JSON

{
  "hex": "#304f82",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 130
  },
  "hsl": {
    "h": 217.317,
    "s": 46.067,
    "l": 34.902
  },
  "oklch": {
    "l": 0.42946,
    "c": 0.09269,
    "h": 259.9
  },
  "luminance": 0.07832
}

Semantic roles & 50–950 ramp

primary

#304F82

secondary

#AE9060

accent

#A452D6

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A0F

muted

#7B7C7F

Preview Lab

Preview with #304F82

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

Preview Lab → · Contrast checker → · Palette generator →