#303AAC#303AAC

#303AAC is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.9% C 0.179 H 272.0°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#303AAC
RGB	rgb(48, 58, 172)
HSL	hsl(235, 56%, 43%)
HSV	hsv(235, 72%, 67%)
CMYK	cmyk(72.1%, 66.3%, 0%, 32.5%)
CIE-LAB	lab(30.95, 35.03, -62.00)
CIE-LCH	lch(30.95, 71.22, 299.47°)
OKLab	oklab(41.9% 0.0063 -0.1792)
OKLCH	oklch(41.9% 0.179 272)
XYZ	xyz(10.1759, 6.6320, 39.7656)
Luminance	0.0663 (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

#303AAC #ACA230

analogous

#3078AC #303AAC #6430AC

triadic

#303AAC #AC303A #3AAC30

tetradic

#303AAC #AC3078 #ACA230 #30AC64

square

#303AAC #AC3078 #ACA230 #30AC64

split-complementary

#303AAC #AC6430 #78AC30

monochromatic

#151A4C #232A7C #303AAC #4C57CD #7C84DA

Accessibility & contrast

On white

9.03

#303AAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#303AAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303AAC

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303AAC	#FFFFFF	#000000	##FFFFFF
##303AAC	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB0

Deuteranopia (green-blind)

#0043AA

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #303aac;
/* rgb */ color: rgb(48, 58, 172);
/* oklch */ color: oklch(41.9% 0.179 272.0);

Tailwind

colors: {
  custom: {
    50: '#7a70c6',
    500: '#303aac',
    950: '#000000',
  },
}

SCSS

$custom: #303aac;
$custom-light: #7a70c6;
$custom-dark: #000000;

JSON

{
  "hex": "#303aac",
  "rgb": {
    "r": 48,
    "g": 58,
    "b": 172
  },
  "hsl": {
    "h": 235.161,
    "s": 56.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.41898,
    "c": 0.1793,
    "h": 272
  },
  "luminance": 0.06633
}

Semantic roles & 50–950 ramp

primary

#303AAC

secondary

#C3BD75

accent

#D348E0

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #303AAC

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

Preview Lab → · Contrast checker → · Palette generator →