#303BAA#303BAA

#303BAA is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.175 H 271.9°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#303BAA
RGB	rgb(48, 59, 170)
HSL	hsl(235, 56%, 43%)
HSV	hsv(235, 72%, 67%)
CMYK	cmyk(71.8%, 65.3%, 0%, 33.3%)
CIE-LAB	lab(31.01, 33.68, -60.71)
CIE-LCH	lch(31.01, 69.42, 299.02°)
OKLab	oklab(41.89% 0.0058 -0.1754)
OKLCH	oklch(41.89% 0.175 271.9)
XYZ	xyz(10.0361, 6.6576, 38.7785)
Luminance	0.0666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.33

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303BAA #AA9F30

analogous

#3078AA #303BAA #6230AA

triadic

#303BAA #AA303B #3BAA30

tetradic

#303BAA #AA3078 #AA9F30 #30AA62

square

#303BAA #AA3078 #AA9F30 #30AA62

split-complementary

#303BAA #AA6230 #78AA30

monochromatic

#151A4B #232A7A #303BAA #4B57CC #7B83DA

Accessibility & contrast

On white

9.01

#303BAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#303BAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303BAA

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303BAA	#FFFFFF	#000000	##FFFFFF
##303BAA	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAE

Deuteranopia (green-blind)

#0043A8

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #303baa;
/* rgb */ color: rgb(48, 59, 170);
/* oklch */ color: oklch(41.9% 0.175 271.9);

Tailwind

colors: {
  custom: {
    50: '#7a71c4',
    500: '#303baa',
    950: '#000000',
  },
}

SCSS

$custom: #303baa;
$custom-light: #7a71c4;
$custom-dark: #000000;

JSON

{
  "hex": "#303baa",
  "rgb": {
    "r": 48,
    "g": 59,
    "b": 170
  },
  "hsl": {
    "h": 234.59,
    "s": 55.963,
    "l": 42.745
  },
  "oklch": {
    "l": 0.41887,
    "c": 0.17549,
    "h": 271.9
  },
  "luminance": 0.06659
}

Semantic roles & 50–950 ramp

primary

#303BAA

secondary

#C2BB74

accent

#D249DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #303BAA

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

Preview Lab → · Contrast checker → · Palette generator →