#304D85#304D85

#304D85 is a dark, moderate blue. Relative luminance 0.076; OKLCH L 42.7% C 0.100 H 262.3°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#304D85
RGB	rgb(48, 77, 133)
HSL	hsl(220, 47%, 35%)
HSV	hsv(220, 64%, 52%)
CMYK	cmyk(63.9%, 42.1%, 0%, 47.8%)
CIE-LAB	lab(33.20, 8.02, -34.69)
CIE-LCH	lch(33.20, 35.60, 283.02°)
OKLab	oklab(42.67% -0.0133 -0.0987)
OKLCH	oklch(42.67% 0.1 262.3)
XYZ	xyz(8.1050, 7.6289, 23.2311)
Luminance	0.0763 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304D85 #856830

analogous

#307785 #304D85 #3D3085

triadic

#304D85 #85304D #4D8530

tetradic

#304D85 #853077 #856830 #30853D

square

#304D85 #853077 #856830 #30853D

split-complementary

#304D85 #853D30 #778530

monochromatic

#10192B #203358 #304D85 #4067B2 #6788C8

Accessibility & contrast

On white

8.31

#304D85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#304D85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304D85

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304D85	#FFFFFF	#000000	##FFFFFF
##304D85	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345287

Deuteranopia (green-blind)

#284A84

Tritanopia (blue-blind)

#005A62

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #304d85;
/* rgb */ color: rgb(48, 77, 133);
/* oklch */ color: oklch(42.7% 0.100 262.3);

Tailwind

colors: {
  custom: {
    50: '#717ea9',
    500: '#304d85',
    950: '#000000',
  },
}

SCSS

$custom: #304d85;
$custom-light: #717ea9;
$custom-dark: #000000;

JSON

{
  "hex": "#304d85",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 133
  },
  "hsl": {
    "h": 219.529,
    "s": 46.961,
    "l": 35.49
  },
  "oklch": {
    "l": 0.42669,
    "c": 0.09959,
    "h": 262.3
  },
  "luminance": 0.0763
}

Semantic roles & 50–950 ramp

primary

#304D85

secondary

#AF9561

accent

#A951D7

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #304D85

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

Preview Lab → · Contrast checker → · Palette generator →