#304558#304558

#304558 is a dark, muted cyan. Relative luminance 0.056; OKLCH L 38.1% C 0.042 H 246.5°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#304558
RGB	rgb(48, 69, 88)
HSL	hsl(209, 29%, 27%)
HSV	hsv(209, 45%, 35%)
CMYK	cmyk(45.5%, 21.6%, 0%, 65.5%)
CIE-LAB	lab(28.35, -2.48, -13.89)
CIE-LCH	lch(28.35, 14.11, 259.87°)
OKLab	oklab(38.12% -0.0168 -0.0385)
OKLCH	oklch(38.12% 0.042 246.5)
XYZ	xyz(5.1079, 5.5889, 10.0402)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304558 #584330

analogous

#305857 #304558 #303158

triadic

#304558 #583045 #455830

tetradic

#304558 #573058 #584330 #315830

square

#304558 #573058 #584330 #315830

split-complementary

#304558 #583031 #585730

monochromatic

#0B1014 #1A2630 #304558 #466480 #5C83A6

Accessibility & contrast

On white

9.92

#304558 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#304558 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304558

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304558	#FFFFFF	#000000	##FFFFFF
##304558	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D4559

Deuteranopia (green-blind)

#384158

Tritanopia (blue-blind)

#21494B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #304558;
/* rgb */ color: rgb(48, 69, 88);
/* oklch */ color: oklch(38.1% 0.042 246.5);

Tailwind

colors: {
  custom: {
    50: '#6a7887',
    500: '#304558',
    950: '#000000',
  },
}

SCSS

$custom: #304558;
$custom-light: #6a7887;
$custom-dark: #000000;

JSON

{
  "hex": "#304558",
  "rgb": {
    "r": 48,
    "g": 69,
    "b": 88
  },
  "hsl": {
    "h": 208.5,
    "s": 29.412,
    "l": 26.667
  },
  "oklch": {
    "l": 0.38119,
    "c": 0.04199,
    "h": 246.5
  },
  "luminance": 0.05589
}

Semantic roles & 50–950 ramp

primary

#304558

secondary

#89715A

accent

#9162C6

background

#F6F7F8

surface

#EBEDEF

border

#C6C8CA

text

#06090B

muted

#7A7B7C

Preview Lab

Preview with #304558

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

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