#303A79#303A79

#303A79 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.6% C 0.107 H 273.4°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#303A79
RGB	rgb(48, 58, 121)
HSL	hsl(232, 43%, 33%)
HSV	hsv(232, 60%, 47%)
CMYK	cmyk(60.3%, 52.1%, 0%, 52.5%)
CIE-LAB	lab(26.83, 16.45, -37.38)
CIE-LCH	lch(26.83, 40.84, 293.76°)
OKLab	oklab(37.55% 0.0063 -0.1069)
OKLCH	oklch(37.55% 0.107 273.4)
XYZ	xyz(6.1820, 5.0345, 18.7314)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303A79 #796F30

analogous

#305E79 #303A79 #4A3079

triadic

#303A79 #79303A #3A7930

tetradic

#303A79 #79305E #796F30 #30794A

square

#303A79 #79305E #796F30 #30794A

split-complementary

#303A79 #794A30 #5E7930

monochromatic

#0D1021 #1F254D #303A79 #414FA5 #626FC1

Accessibility & contrast

On white

10.46

#303A79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#303A79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303A79

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303A79	#FFFFFF	#000000	##FFFFFF
##303A79	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19437B

Deuteranopia (green-blind)

#0C3C78

Tritanopia (blue-blind)

#004853

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #303a79;
/* rgb */ color: rgb(48, 58, 121);
/* oklch */ color: oklch(37.6% 0.107 273.4);

Tailwind

colors: {
  custom: {
    50: '#6f6fa0',
    500: '#303a79',
    950: '#000000',
  },
}

SCSS

$custom: #303a79;
$custom-light: #6f6fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#303a79",
  "rgb": {
    "r": 48,
    "g": 58,
    "b": 121
  },
  "hsl": {
    "h": 231.781,
    "s": 43.195,
    "l": 33.137
  },
  "oklch": {
    "l": 0.37551,
    "c": 0.10705,
    "h": 273.4
  },
  "luminance": 0.05035
}

Semantic roles & 50–950 ramp

primary

#303A79

secondary

#A89E5D

accent

#C255D3

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070F

muted

#7B7A7E

Preview Lab

Preview with #303A79

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

Preview Lab → · Contrast checker → · Palette generator →