#303D7A#303D7A

#303D7A is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.3% C 0.104 H 271.6°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#303D7A
RGB	rgb(48, 61, 122)
HSL	hsl(229, 44%, 33%)
HSV	hsv(229, 61%, 48%)
CMYK	cmyk(60.7%, 50%, 0%, 52.2%)
CIE-LAB	lab(27.77, 14.77, -36.52)
CIE-LCH	lch(27.77, 39.39, 292.02°)
OKLab	oklab(38.28% 0.0029 -0.1043)
OKLCH	oklch(38.28% 0.104 271.6)
XYZ	xyz(6.3994, 5.3705, 19.1080)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303D7A #7A6D30

analogous

#30627A #303D7A #48307A

triadic

#303D7A #7A303D #3D7A30

tetradic

#303D7A #7A3062 #7A6D30 #307A48

square

#303D7A #7A3062 #7A6D30 #307A48

split-complementary

#303D7A #7A4830 #627A30

monochromatic

#0D1122 #1F274E #303D7A #4153A6 #6373C2

Accessibility & contrast

On white

10.12

#303D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#303D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303D7A

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303D7A	#FFFFFF	#000000	##FFFFFF
##303D7A	1.00	10.12	2.07	10.12
#FFFFFF	10.12	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F457C

Deuteranopia (green-blind)

#133E79

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #303d7a;
/* rgb */ color: rgb(48, 61, 122);
/* oklch */ color: oklch(38.3% 0.104 271.6);

Tailwind

colors: {
  custom: {
    50: '#6f72a1',
    500: '#303d7a',
    950: '#000000',
  },
}

SCSS

$custom: #303d7a;
$custom-light: #6f72a1;
$custom-dark: #000000;

JSON

{
  "hex": "#303d7a",
  "rgb": {
    "r": 48,
    "g": 61,
    "b": 122
  },
  "hsl": {
    "h": 229.459,
    "s": 43.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.3828,
    "c": 0.10433,
    "h": 271.6
  },
  "luminance": 0.05371
}

Semantic roles & 50–950 ramp

primary

#303D7A

secondary

#A99B5D

accent

#BD55D3

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070F

muted

#7B7A7E

Preview Lab

Preview with #303D7A

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

Preview Lab → · Contrast checker → · Palette generator →