#304E7A#304E7A

#304E7A is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.2% C 0.082 H 257.9°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#304E7A
RGB	rgb(48, 78, 122)
HSL	hsl(216, 44%, 33%)
HSV	hsv(216, 61%, 48%)
CMYK	cmyk(60.7%, 36.1%, 0%, 52.2%)
CIE-LAB	lab(32.88, 3.34, -28.38)
CIE-LCH	lch(32.88, 28.58, 276.72°)
OKLab	oklab(42.22% -0.0173 -0.0803)
OKLCH	oklch(42.22% 0.082 257.9)
XYZ	xyz(7.4549, 7.4817, 19.4598)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304E7A #7A5C30

analogous

#30737A #304E7A #37307A

triadic

#304E7A #7A304E #4E7A30

tetradic

#304E7A #7A3073 #7A5C30 #307A37

square

#304E7A #7A3073 #7A5C30 #307A37

split-complementary

#304E7A #7A3730 #737A30

monochromatic

#0D1622 #1F324E #304E7A #416AA6 #6389C2

Accessibility & contrast

On white

8.41

#304E7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#304E7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304E7A

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304E7A	#FFFFFF	#000000	##FFFFFF
##304E7A	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C517C

Deuteranopia (green-blind)

#324A79

Tritanopia (blue-blind)

#00585E

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #304e7a;
/* rgb */ color: rgb(48, 78, 122);
/* oklch */ color: oklch(42.2% 0.082 257.9);

Tailwind

colors: {
  custom: {
    50: '#6f7fa0',
    500: '#304e7a',
    950: '#000000',
  },
}

SCSS

$custom: #304e7a;
$custom-light: #6f7fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#304e7a",
  "rgb": {
    "r": 48,
    "g": 78,
    "b": 122
  },
  "hsl": {
    "h": 215.676,
    "s": 43.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.42218,
    "c": 0.08209,
    "h": 257.9
  },
  "luminance": 0.07482
}

Semantic roles & 50–950 ramp

primary

#304E7A

secondary

#A98A5D

accent

#A055D3

background

#F6F7F9

surface

#ECEEF2

border

#C7C9CC

text

#080A0F

muted

#7B7C7E

Preview Lab

Preview with #304E7A

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

Preview Lab → · Contrast checker → · Palette generator →