#304F63#304F63

#304F63 is a dark, muted cyan. Relative luminance 0.071; OKLCH L 41.2% C 0.050 H 238.0°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#304F63
RGB	rgb(48, 79, 99)
HSL	hsl(204, 35%, 29%)
HSV	hsv(204, 52%, 39%)
CMYK	cmyk(51.5%, 20.2%, 0%, 61.2%)
CIE-LAB	lab(32.08, -5.25, -15.20)
CIE-LCH	lch(32.08, 16.08, 250.93°)
OKLab	oklab(41.22% -0.0264 -0.0422)
OKLCH	oklch(41.22% 0.05 238)
XYZ	xyz(6.2662, 7.1207, 12.8462)
Luminance	0.0712 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304F63 #634430

analogous

#30635E #304F63 #303663

triadic

#304F63 #63304F #4F6330

tetradic

#304F63 #5E3063 #634430 #366330

square

#304F63 #5E3063 #634430 #366330

split-complementary

#304F63 #633036 #635E30

monochromatic

#0A1015 #1C2E3A #304F63 #44708C #5D90B0

Accessibility & contrast

On white

8.66

#304F63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#304F63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304F63

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304F63	#FFFFFF	#000000	##FFFFFF
##304F63	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464F64

Deuteranopia (green-blind)

#3F4963

Tritanopia (blue-blind)

#175456

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #304f63;
/* rgb */ color: rgb(48, 79, 99);
/* oklch */ color: oklch(41.2% 0.050 238.0);

Tailwind

colors: {
  custom: {
    50: '#6c808f',
    500: '#304f63',
    950: '#000000',
  },
}

SCSS

$custom: #304f63;
$custom-light: #6c808f;
$custom-dark: #000000;

JSON

{
  "hex": "#304f63",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 99
  },
  "hsl": {
    "h": 203.529,
    "s": 34.694,
    "l": 28.824
  },
  "oklch": {
    "l": 0.41223,
    "c": 0.0498,
    "h": 238
  },
  "luminance": 0.07121
}

Semantic roles & 50–950 ramp

primary

#304F63

secondary

#94715A

accent

#885DCB

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#070A0C

muted

#7A7C7D

Preview Lab

Preview with #304F63

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

Preview Lab → · Contrast checker → · Palette generator →