#303E90#303E90

#303E90 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.2% C 0.136 H 271.6°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#303E90
RGB	rgb(48, 62, 144)
HSL	hsl(231, 50%, 38%)
HSV	hsv(231, 67%, 56%)
CMYK	cmyk(66.7%, 56.9%, 0%, 43.5%)
CIE-LAB	lab(29.63, 22.20, -47.19)
CIE-LCH	lch(29.63, 52.15, 295.20°)
OKLab	oklab(40.19% 0.0038 -0.1357)
OKLCH	oklch(40.19% 0.136 271.6)
XYZ	xyz(7.9739, 6.0865, 27.1348)
Luminance	0.0609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303E90 #908230

analogous

#306E90 #303E90 #523090

triadic

#303E90 #90303E #3E9030

tetradic

#303E90 #90306E #908230 #309052

square

#303E90 #90306E #908230 #309052

split-complementary

#303E90 #905230 #6E9030

monochromatic

#111634 #212A62 #303E90 #3F52BE #6C7BCE

Accessibility & contrast

On white

9.47

#303E90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#303E90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303E90

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303E90	#FFFFFF	#000000	##FFFFFF
##303E90	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A93

Deuteranopia (green-blind)

#00428E

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #303e90;
/* rgb */ color: rgb(48, 62, 144);
/* oklch */ color: oklch(40.2% 0.136 271.6);

Tailwind

colors: {
  custom: {
    50: '#7473b1',
    500: '#303e90',
    950: '#000000',
  },
}

SCSS

$custom: #303e90;
$custom-light: #7473b1;
$custom-dark: #000000;

JSON

{
  "hex": "#303e90",
  "rgb": {
    "r": 48,
    "g": 62,
    "b": 144
  },
  "hsl": {
    "h": 231.25,
    "s": 50,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40191,
    "c": 0.13572,
    "h": 271.6
  },
  "luminance": 0.06087
}

Semantic roles & 50–950 ramp

primary

#303E90

secondary

#B5AA66

accent

#C54EDA

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #303E90

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

Preview Lab → · Contrast checker → · Palette generator →