#304063#304063

#304063 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.5% C 0.064 H 264.8°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#304063
RGB	rgb(48, 64, 99)
HSL	hsl(221, 35%, 29%)
HSV	hsv(221, 52%, 39%)
CMYK	cmyk(51.5%, 35.4%, 0%, 61.2%)
CIE-LAB	lab(27.29, 4.49, -22.64)
CIE-LCH	lch(27.29, 23.08, 281.22°)
OKLab	oklab(37.46% -0.0058 -0.0637)
OKLCH	oklch(37.46% 0.064 264.8)
XYZ	xyz(5.3037, 5.1957, 12.5254)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304063 #635330

analogous

#305A63 #304063 #3A3063

triadic

#304063 #633040 #406330

tetradic

#304063 #63305A #635330 #30633A

square

#304063 #63305A #635330 #30633A

split-complementary

#304063 #633A30 #5A6330

monochromatic

#0A0D15 #1C253A #304063 #445B8C #5D77B0

Accessibility & contrast

On white

10.30

#304063 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#304063 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304063

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304063	#FFFFFF	#000000	##FFFFFF
##304063	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#334364

Deuteranopia (green-blind)

#2D3E62

Tritanopia (blue-blind)

#1B474D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #304063;
/* rgb */ color: rgb(48, 64, 99);
/* oklch */ color: oklch(37.5% 0.064 264.8);

Tailwind

colors: {
  custom: {
    50: '#6c748f',
    500: '#304063',
    950: '#000000',
  },
}

SCSS

$custom: #304063;
$custom-light: #6c748f;
$custom-dark: #000000;

JSON

{
  "hex": "#304063",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 99
  },
  "hsl": {
    "h": 221.176,
    "s": 34.694,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37461,
    "c": 0.06392,
    "h": 264.8
  },
  "luminance": 0.05196
}

Semantic roles & 50–950 ramp

primary

#304063

secondary

#94825A

accent

#A85DCB

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#07080C

muted

#7A7B7D

Preview Lab

Preview with #304063

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

Preview Lab → · Contrast checker → · Palette generator →