#303A90#303A90

#303A90 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.4% C 0.141 H 273.1°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#303A90
RGB	rgb(48, 58, 144)
HSL	hsl(234, 50%, 38%)
HSV	hsv(234, 67%, 56%)
CMYK	cmyk(66.7%, 59.7%, 0%, 43.5%)
CIE-LAB	lab(28.56, 24.89, -48.93)
CIE-LCH	lch(28.56, 54.90, 296.96°)
OKLab	oklab(39.39% 0.0075 -0.1408)
OKLCH	oklch(39.39% 0.141 273.1)
XYZ	xyz(7.7643, 5.6674, 27.0649)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303A90 #908630

analogous

#306A90 #303A90 #563090

triadic

#303A90 #90303A #3A9030

tetradic

#303A90 #90306A #908630 #309056

square

#303A90 #90306A #908630 #309056

split-complementary

#303A90 #905630 #6A9030

monochromatic

#111534 #212862 #303A90 #3F4CBE #6C76CE

Accessibility & contrast

On white

9.84

#303A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#303A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303A90

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303A90	#FFFFFF	#000000	##FFFFFF
##303A90	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004893

Deuteranopia (green-blind)

#003F8E

Tritanopia (blue-blind)

#004F5F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #303a90;
/* rgb */ color: rgb(48, 58, 144);
/* oklch */ color: oklch(39.4% 0.141 273.1);

Tailwind

colors: {
  custom: {
    50: '#7470b1',
    500: '#303a90',
    950: '#000000',
  },
}

SCSS

$custom: #303a90;
$custom-light: #7470b1;
$custom-dark: #000000;

JSON

{
  "hex": "#303a90",
  "rgb": {
    "r": 48,
    "g": 58,
    "b": 144
  },
  "hsl": {
    "h": 233.75,
    "s": 50,
    "l": 37.647
  },
  "oklch": {
    "l": 0.39391,
    "c": 0.14103,
    "h": 273.1
  },
  "luminance": 0.05668
}

Semantic roles & 50–950 ramp

primary

#303A90

secondary

#B5AD66

accent

#CB4EDA

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #303A90

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

Preview Lab → · Contrast checker → · Palette generator →