#304E87#304E87

#304E87 is a dark, moderate blue. Relative luminance 0.078; OKLCH L 43.0% C 0.101 H 262.1°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#304E87
RGB	rgb(48, 78, 135)
HSL	hsl(219, 48%, 36%)
HSV	hsv(219, 64%, 53%)
CMYK	cmyk(64.4%, 42.2%, 0%, 47.1%)
CIE-LAB	lab(33.62, 8.09, -35.25)
CIE-LCH	lch(33.62, 36.17, 282.93°)
OKLab	oklab(43.03% -0.014 -0.1003)
OKLCH	oklch(43.03% 0.101 262.1)
XYZ	xyz(8.3150, 7.8257, 23.9893)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304E87 #876930

analogous

#307987 #304E87 #3D3087

triadic

#304E87 #87304E #4E8730

tetradic

#304E87 #873079 #876930 #30873D

square

#304E87 #873079 #876930 #30873D

split-complementary

#304E87 #873D30 #798730

monochromatic

#101A2D #20345A #304E87 #4068B4 #688AC9

Accessibility & contrast

On white

8.19

#304E87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#304E87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304E87

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304E87	#FFFFFF	#000000	##FFFFFF
##304E87	1.00	8.19	2.57	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355389

Deuteranopia (green-blind)

#284B86

Tritanopia (blue-blind)

#005B64

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #304e87;
/* rgb */ color: rgb(48, 78, 135);
/* oklch */ color: oklch(43.0% 0.101 262.1);

Tailwind

colors: {
  custom: {
    50: '#717faa',
    500: '#304e87',
    950: '#000000',
  },
}

SCSS

$custom: #304e87;
$custom-light: #717faa;
$custom-dark: #000000;

JSON

{
  "hex": "#304e87",
  "rgb": {
    "r": 48,
    "g": 78,
    "b": 135
  },
  "hsl": {
    "h": 219.31,
    "s": 47.541,
    "l": 35.882
  },
  "oklch": {
    "l": 0.43032,
    "c": 0.10131,
    "h": 262.1
  },
  "luminance": 0.07826
}

Semantic roles & 50–950 ramp

primary

#304E87

secondary

#B19662

accent

#A951D7

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #304E87

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

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