#303EA1#303EA1

#303EA1 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.6% C 0.160 H 271.4°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#303EA1
RGB	rgb(48, 62, 161)
HSL	hsl(233, 54%, 41%)
HSV	hsv(233, 70%, 63%)
CMYK	cmyk(70.2%, 61.5%, 0%, 36.9%)
CIE-LAB	lab(30.99, 28.47, -55.34)
CIE-LCH	lch(30.99, 62.23, 297.22°)
OKLab	oklab(41.63% 0.004 -0.1596)
OKLCH	oklch(41.63% 0.16 271.4)
XYZ	xyz(9.3724, 6.6459, 34.5002)
Luminance	0.0665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303EA1 #A19330

analogous

#3076A1 #303EA1 #5A30A1

triadic

#303EA1 #A1303E #3EA130

tetradic

#303EA1 #A13076 #A19330 #30A15A

square

#303EA1 #A13076 #A19330 #30A15A

split-complementary

#303EA1 #A15A30 #76A130

monochromatic

#141A43 #222C72 #303EA1 #4656C8 #7581D6

Accessibility & contrast

On white

9.02

#303EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#303EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303EA1

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303EA1	#FFFFFF	#000000	##FFFFFF
##303EA1	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA4

Deuteranopia (green-blind)

#00449F

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #303ea1;
/* rgb */ color: rgb(48, 62, 161);
/* oklch */ color: oklch(41.6% 0.160 271.4);

Tailwind

colors: {
  custom: {
    50: '#7773be',
    500: '#303ea1',
    950: '#000000',
  },
}

SCSS

$custom: #303ea1;
$custom-light: #7773be;
$custom-dark: #000000;

JSON

{
  "hex": "#303ea1",
  "rgb": {
    "r": 48,
    "g": 62,
    "b": 161
  },
  "hsl": {
    "h": 232.566,
    "s": 54.067,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41627,
    "c": 0.15967,
    "h": 271.4
  },
  "luminance": 0.06647
}

Semantic roles & 50–950 ramp

primary

#303EA1

secondary

#BEB46F

accent

#CB4ADD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #303EA1

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

Preview Lab → · Contrast checker → · Palette generator →