#303D79#303D79

#303D79 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.2% C 0.103 H 271.6°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#303D79
RGB	rgb(48, 61, 121)
HSL	hsl(229, 43%, 33%)
HSV	hsv(229, 60%, 47%)
CMYK	cmyk(60.3%, 49.6%, 0%, 52.5%)
CIE-LAB	lab(27.70, 14.40, -35.99)
CIE-LCH	lch(27.70, 38.77, 291.80°)
OKLab	oklab(38.21% 0.0028 -0.1027)
OKLCH	oklch(38.21% 0.103 271.6)
XYZ	xyz(6.3377, 5.3459, 18.7833)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303D79 #796C30

analogous

#306179 #303D79 #473079

triadic

#303D79 #79303D #3D7930

tetradic

#303D79 #793061 #796C30 #307947

square

#303D79 #793061 #796C30 #307947

split-complementary

#303D79 #794730 #617930

monochromatic

#0D1121 #1F274D #303D79 #4153A5 #6273C1

Accessibility & contrast

On white

10.15

#303D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#303D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303D79

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303D79	#FFFFFF	#000000	##FFFFFF
##303D79	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20457B

Deuteranopia (green-blind)

#153E78

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #303d79;
/* rgb */ color: rgb(48, 61, 121);
/* oklch */ color: oklch(38.2% 0.103 271.6);

Tailwind

colors: {
  custom: {
    50: '#6f72a0',
    500: '#303d79',
    950: '#000000',
  },
}

SCSS

$custom: #303d79;
$custom-light: #6f72a0;
$custom-dark: #000000;

JSON

{
  "hex": "#303d79",
  "rgb": {
    "r": 48,
    "g": 61,
    "b": 121
  },
  "hsl": {
    "h": 229.315,
    "s": 43.195,
    "l": 33.137
  },
  "oklch": {
    "l": 0.38207,
    "c": 0.10279,
    "h": 271.6
  },
  "luminance": 0.05346
}

Semantic roles & 50–950 ramp

primary

#303D79

secondary

#A89B5D

accent

#BC55D3

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070F

muted

#7B7A7E

Preview Lab

Preview with #303D79

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

Preview Lab → · Contrast checker → · Palette generator →