#304563#304563

#304563 is a dark, muted blue. Relative luminance 0.058; OKLCH L 38.7% C 0.058 H 257.3°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#304563
RGB	rgb(48, 69, 99)
HSL	hsl(215, 35%, 29%)
HSV	hsv(215, 52%, 39%)
CMYK	cmyk(51.5%, 30.3%, 0%, 61.2%)
CIE-LAB	lab(28.86, 1.16, -20.17)
CIE-LCH	lch(28.86, 20.20, 273.30°)
OKLab	oklab(38.69% -0.0127 -0.0565)
OKLCH	oklch(38.69% 0.058 257.3)
XYZ	xyz(5.5984, 5.7851, 12.6236)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304563 #634E30

analogous

#305F63 #304563 #353063

triadic

#304563 #633045 #456330

tetradic

#304563 #63305F #634E30 #306335

square

#304563 #63305F #634E30 #306335

split-complementary

#304563 #633530 #5F6330

monochromatic

#0A0E15 #1C283A #304563 #44628C #5D7FB0

Accessibility & contrast

On white

9.74

#304563 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#304563 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304563

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304563	#FFFFFF	#000000	##FFFFFF
##304563	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#394764

Deuteranopia (green-blind)

#334262

Tritanopia (blue-blind)

#1A4C50

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #304563;
/* rgb */ color: rgb(48, 69, 99);
/* oklch */ color: oklch(38.7% 0.058 257.3);

Tailwind

colors: {
  custom: {
    50: '#6c788f',
    500: '#304563',
    950: '#000000',
  },
}

SCSS

$custom: #304563;
$custom-light: #6c788f;
$custom-dark: #000000;

JSON

{
  "hex": "#304563",
  "rgb": {
    "r": 48,
    "g": 69,
    "b": 99
  },
  "hsl": {
    "h": 215.294,
    "s": 34.694,
    "l": 28.824
  },
  "oklch": {
    "l": 0.38691,
    "c": 0.0579,
    "h": 257.3
  },
  "luminance": 0.05785
}

Semantic roles & 50–950 ramp

primary

#304563

secondary

#947D5A

accent

#9E5DCB

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#07090C

muted

#7A7B7D

Preview Lab

Preview with #304563

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

Preview Lab → · Contrast checker → · Palette generator →