#304E79#304E79

#304E79 is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.2% C 0.081 H 257.4°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#304E79
RGB	rgb(48, 78, 121)
HSL	hsl(215, 43%, 33%)
HSV	hsv(215, 60%, 47%)
CMYK	cmyk(60.3%, 35.5%, 0%, 52.5%)
CIE-LAB	lab(32.83, 2.98, -27.84)
CIE-LCH	lch(32.83, 28.00, 276.11°)
OKLab	oklab(42.16% -0.0175 -0.0787)
OKLCH	oklch(42.16% 0.081 257.4)
XYZ	xyz(7.3933, 7.4570, 19.1352)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304E79 #795B30

analogous

#307279 #304E79 #363079

triadic

#304E79 #79304E #4E7930

tetradic

#304E79 #793072 #795B30 #307936

square

#304E79 #793072 #795B30 #307936

split-complementary

#304E79 #793630 #727930

monochromatic

#0D1621 #1F324D #304E79 #416AA5 #6289C1

Accessibility & contrast

On white

8.43

#304E79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#304E79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304E79

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304E79	#FFFFFF	#000000	##FFFFFF
##304E79	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C517B

Deuteranopia (green-blind)

#334A78

Tritanopia (blue-blind)

#00585E

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #304e79;
/* rgb */ color: rgb(48, 78, 121);
/* oklch */ color: oklch(42.2% 0.081 257.4);

Tailwind

colors: {
  custom: {
    50: '#6f7fa0',
    500: '#304e79',
    950: '#000000',
  },
}

SCSS

$custom: #304e79;
$custom-light: #6f7fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#304e79",
  "rgb": {
    "r": 48,
    "g": 78,
    "b": 121
  },
  "hsl": {
    "h": 215.342,
    "s": 43.195,
    "l": 33.137
  },
  "oklch": {
    "l": 0.42159,
    "c": 0.08062,
    "h": 257.4
  },
  "luminance": 0.07458
}

Semantic roles & 50–950 ramp

primary

#304E79

secondary

#A8895D

accent

#9F55D3

background

#F6F7F9

surface

#ECEEF2

border

#C7C9CC

text

#080A0E

muted

#7B7C7E

Preview Lab

Preview with #304E79

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

Preview Lab → · Contrast checker → · Palette generator →