#303DA2#303DA2

#303DA2 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.5% C 0.162 H 271.7°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#303DA2
RGB	rgb(48, 61, 162)
HSL	hsl(233, 54%, 41%)
HSV	hsv(233, 70%, 64%)
CMYK	cmyk(70.4%, 62.3%, 0%, 36.5%)
CIE-LAB	lab(30.82, 29.49, -56.22)
CIE-LCH	lch(30.82, 63.48, 297.68°)
OKLab	oklab(41.53% 0.0047 -0.1622)
OKLCH	oklch(41.53% 0.162 271.7)
XYZ	xyz(9.4071, 6.5736, 34.9485)
Luminance	0.0658 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303DA2 #A29530

analogous

#3076A2 #303DA2 #5C30A2

triadic

#303DA2 #A2303D #3DA230

tetradic

#303DA2 #A23076 #A29530 #30A25C

square

#303DA2 #A23076 #A29530 #30A25C

split-complementary

#303DA2 #A25C30 #76A230

monochromatic

#141944 #222B73 #303DA2 #4756C8 #7681D6

Accessibility & contrast

On white

9.07

#303DA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#303DA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303DA2

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303DA2	#FFFFFF	#000000	##FFFFFF
##303DA2	1.00	9.07	2.32	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA5

Deuteranopia (green-blind)

#0043A0

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #303da2;
/* rgb */ color: rgb(48, 61, 162);
/* oklch */ color: oklch(41.5% 0.162 271.7);

Tailwind

colors: {
  custom: {
    50: '#7872be',
    500: '#303da2',
    950: '#000000',
  },
}

SCSS

$custom: #303da2;
$custom-light: #7872be;
$custom-dark: #000000;

JSON

{
  "hex": "#303da2",
  "rgb": {
    "r": 48,
    "g": 61,
    "b": 162
  },
  "hsl": {
    "h": 233.158,
    "s": 54.286,
    "l": 41.176
  },
  "oklch": {
    "l": 0.41526,
    "c": 0.16229,
    "h": 271.7
  },
  "luminance": 0.06575
}

Semantic roles & 50–950 ramp

primary

#303DA2

secondary

#BEB56F

accent

#CD4ADE

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #303DA2

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

Preview Lab → · Contrast checker → · Palette generator →