#303BAD#303BAD

#303BAD is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.2% C 0.179 H 271.8°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#303BAD
RGB	rgb(48, 59, 173)
HSL	hsl(235, 57%, 43%)
HSV	hsv(235, 72%, 68%)
CMYK	cmyk(72.3%, 65.9%, 0%, 32.2%)
CIE-LAB	lab(31.28, 34.75, -62.06)
CIE-LCH	lch(31.28, 71.13, 299.25°)
OKLab	oklab(42.17% 0.0056 -0.1794)
OKLCH	oklch(42.17% 0.179 271.8)
XYZ	xyz(10.3232, 6.7724, 40.2902)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303BAD #ADA230

analogous

#3079AD #303BAD #6330AD

triadic

#303BAD #AD303B #3BAD30

tetradic

#303BAD #AD3079 #ADA230 #30AD63

square

#303BAD #AD3079 #ADA230 #30AD63

split-complementary

#303BAD #AD6330 #79AD30

monochromatic

#151A4D #232B7D #303BAD #4D58CE #7D85DB

Accessibility & contrast

On white

8.92

#303BAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#303BAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303BAD

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303BAD	#FFFFFF	#000000	##FFFFFF
##303BAD	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B1

Deuteranopia (green-blind)

#0044AB

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #303bad;
/* rgb */ color: rgb(48, 59, 173);
/* oklch */ color: oklch(42.2% 0.179 271.8);

Tailwind

colors: {
  custom: {
    50: '#7a71c6',
    500: '#303bad',
    950: '#000000',
  },
}

SCSS

$custom: #303bad;
$custom-light: #7a71c6;
$custom-dark: #000000;

JSON

{
  "hex": "#303bad",
  "rgb": {
    "r": 48,
    "g": 59,
    "b": 173
  },
  "hsl": {
    "h": 234.72,
    "s": 56.561,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42166,
    "c": 0.17945,
    "h": 271.8
  },
  "luminance": 0.06773
}

Semantic roles & 50–950 ramp

primary

#303BAD

secondary

#C3BD75

accent

#D248E0

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #303BAD

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

Preview Lab → · Contrast checker → · Palette generator →