#303C4A#303C4A

#303C4A is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.1% C 0.029 H 252.5°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#303C4A
RGB	rgb(48, 60, 74)
HSL	hsl(212, 21%, 24%)
HSV	hsv(212, 35%, 29%)
CMYK	cmyk(35.1%, 18.9%, 0%, 71%)
CIE-LAB	lab(24.81, -0.97, -10.15)
CIE-LCH	lch(24.81, 10.20, 264.53°)
OKLab	oklab(35.13% -0.0088 -0.0279)
OKLCH	oklch(35.13% 0.029 252.5)
XYZ	xyz(4.0704, 4.3543, 7.1032)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303C4A #4A3E30

analogous

#30494A #303C4A #31304A

triadic

#303C4A #4A303C #3C4A30

tetradic

#303C4A #4A3049 #4A3E30 #304A31

square

#303C4A #4A3049 #4A3E30 #304A31

split-complementary

#303C4A #4A3130 #494A30

monochromatic

#0C0F13 #181E25 #303C4A #485A6F #607894

Accessibility & contrast

On white

11.22

#303C4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#303C4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303C4A

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303C4A	#FFFFFF	#000000	##FFFFFF
##303C4A	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373C4B

Deuteranopia (green-blind)

#343A4A

Tritanopia (blue-blind)

#283F41

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #303c4a;
/* rgb */ color: rgb(48, 60, 74);
/* oklch */ color: oklch(35.1% 0.029 252.5);

Tailwind

colors: {
  custom: {
    50: '#69717c',
    500: '#303c4a',
    950: '#000000',
  },
}

SCSS

$custom: #303c4a;
$custom-light: #69717c;
$custom-dark: #000000;

JSON

{
  "hex": "#303c4a",
  "rgb": {
    "r": 48,
    "g": 60,
    "b": 74
  },
  "hsl": {
    "h": 212.308,
    "s": 21.311,
    "l": 23.922
  },
  "oklch": {
    "l": 0.35133,
    "c": 0.02925,
    "h": 252.5
  },
  "luminance": 0.04355
}

Semantic roles & 50–950 ramp

primary

#303C4A

secondary

#7B6C5B

accent

#976ABE

background

#F6F6F7

surface

#EBECEE

border

#C6C7C9

text

#060709

muted

#7A7A7B

Preview Lab

Preview with #303C4A

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

Preview Lab → · Contrast checker → · Palette generator →