#304D64#304D64

#304D64 is a dark, muted cyan. Relative luminance 0.069; OKLCH L 40.8% C 0.052 H 243.5°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#304D64
RGB	rgb(48, 77, 100)
HSL	hsl(207, 35%, 29%)
HSV	hsv(207, 52%, 39%)
CMYK	cmyk(52%, 23%, 0%, 60.8%)
CIE-LAB	lab(31.48, -3.67, -16.76)
CIE-LCH	lch(31.48, 17.15, 257.66°)
OKLab	oklab(40.76% -0.0233 -0.0467)
OKLCH	oklch(40.76% 0.052 243.5)
XYZ	xyz(6.1722, 6.8558, 13.0522)
Luminance	0.0686 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304D64 #644730

analogous

#306461 #304D64 #303364

triadic

#304D64 #64304D #4D6430

tetradic

#304D64 #613064 #644730 #336430

square

#304D64 #613064 #644730 #336430

split-complementary

#304D64 #643033 #646130

monochromatic

#0A1015 #1C2D3B #304D64 #446D8D #5D8CB1

Accessibility & contrast

On white

8.86

#304D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#304D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304D64

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304D64	#FFFFFF	#000000	##FFFFFF
##304D64	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#434D65

Deuteranopia (green-blind)

#3C4864

Tritanopia (blue-blind)

#175355

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #304d64;
/* rgb */ color: rgb(48, 77, 100);
/* oklch */ color: oklch(40.8% 0.052 243.5);

Tailwind

colors: {
  custom: {
    50: '#6c7e90',
    500: '#304d64',
    950: '#000000',
  },
}

SCSS

$custom: #304d64;
$custom-light: #6c7e90;
$custom-dark: #000000;

JSON

{
  "hex": "#304d64",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 100
  },
  "hsl": {
    "h": 206.538,
    "s": 35.135,
    "l": 29.02
  },
  "oklch": {
    "l": 0.4076,
    "c": 0.05217,
    "h": 243.5
  },
  "luminance": 0.06856
}

Semantic roles & 50–950 ramp

primary

#304D64

secondary

#95745A

accent

#8E5DCB

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#070A0C

muted

#7A7C7D

Preview Lab

Preview with #304D64

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

Preview Lab → · Contrast checker → · Palette generator →