#304EAF#304EAF

#304EAF is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.9% C 0.159 H 266.9°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#304EAF
RGB	rgb(48, 78, 175)
HSL	hsl(226, 57%, 44%)
HSV	hsv(226, 73%, 69%)
CMYK	cmyk(72.6%, 55.4%, 0%, 31.4%)
CIE-LAB	lab(36.31, 23.09, -55.05)
CIE-LCH	lch(36.31, 59.70, 292.75°)
OKLab	oklab(45.95% -0.0085 -0.1586)
OKLCH	oklch(45.95% 0.159 266.9)
XYZ	xyz(11.6785, 9.1711, 41.7038)
Luminance	0.0917 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304EAF #AF9130

analogous

#308DAF #304EAF #5130AF

triadic

#304EAF #AF304E #4EAF30

tetradic

#304EAF #AF308D #AF9130 #30AF51

square

#304EAF #AF308D #AF9130 #30AF51

split-complementary

#304EAF #AF5130 #8DAF30

monochromatic

#16234F #23397F #304EAF #4E6CCE #7E94DC

Accessibility & contrast

On white

7.41

#304EAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#304EAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304EAF

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304EAF	#FFFFFF	#000000	##FFFFFF
##304EAF	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB2

Deuteranopia (green-blind)

#0050AD

Tritanopia (blue-blind)

#006677

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #304eaf;
/* rgb */ color: rgb(48, 78, 175);
/* oklch */ color: oklch(45.9% 0.159 266.9);

Tailwind

colors: {
  custom: {
    50: '#797fc8',
    500: '#304eaf',
    950: '#000000',
  },
}

SCSS

$custom: #304eaf;
$custom-light: #797fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#304eaf",
  "rgb": {
    "r": 48,
    "g": 78,
    "b": 175
  },
  "hsl": {
    "h": 225.827,
    "s": 56.951,
    "l": 43.725
  },
  "oklch": {
    "l": 0.45949,
    "c": 0.1588,
    "h": 266.9
  },
  "luminance": 0.09172
}

Semantic roles & 50–950 ramp

primary

#304EAF

secondary

#C4B276

accent

#BC48E0

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #304EAF

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

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