#303EAF#303EAF

#303EAF is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.9% C 0.179 H 271.1°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#303EAF
RGB	rgb(48, 62, 175)
HSL	hsl(233, 57%, 44%)
HSV	hsv(233, 73%, 69%)
CMYK	cmyk(72.6%, 64.6%, 0%, 31.4%)
CIE-LAB	lab(32.19, 33.56, -61.78)
CIE-LCH	lch(32.19, 70.30, 298.51°)
OKLab	oklab(42.88% 0.0034 -0.1785)
OKLCH	oklch(42.88% 0.179 271.1)
XYZ	xyz(10.6768, 7.1677, 41.3699)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.00

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303EAF #AFA130

analogous

#307DAF #303EAF #6130AF

triadic

#303EAF #AF303E #3EAF30

tetradic

#303EAF #AF307D #AFA130 #30AF61

square

#303EAF #AF307D #AFA130 #30AF61

split-complementary

#303EAF #AF6130 #7DAF30

monochromatic

#161C4F #232D7F #303EAF #4E5CCE #7E88DC

Accessibility & contrast

On white

8.63

#303EAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#303EAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303EAF

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303EAF	#FFFFFF	#000000	##FFFFFF
##303EAF	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B3

Deuteranopia (green-blind)

#0046AD

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #303eaf;
/* rgb */ color: rgb(48, 62, 175);
/* oklch */ color: oklch(42.9% 0.179 271.1);

Tailwind

colors: {
  custom: {
    50: '#7b73c8',
    500: '#303eaf',
    950: '#000000',
  },
}

SCSS

$custom: #303eaf;
$custom-light: #7b73c8;
$custom-dark: #000000;

JSON

{
  "hex": "#303eaf",
  "rgb": {
    "r": 48,
    "g": 62,
    "b": 175
  },
  "hsl": {
    "h": 233.386,
    "s": 56.951,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42881,
    "c": 0.17854,
    "h": 271.1
  },
  "luminance": 0.07169
}

Semantic roles & 50–950 ramp

primary

#303EAF

secondary

#C4BC76

accent

#CF48E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #303EAF

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

Preview Lab → · Contrast checker → · Palette generator →