#304050#304050

#304050 is a dark, muted cyan. Relative luminance 0.049; OKLCH L 36.4% C 0.035 H 248.8°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#304050
RGB	rgb(48, 64, 80)
HSL	hsl(210, 25%, 25%)
HSV	hsv(210, 40%, 31%)
CMYK	cmyk(40%, 20%, 0%, 68.6%)
CIE-LAB	lab(26.37, -1.76, -11.72)
CIE-LCH	lch(26.37, 11.85, 261.44°)
OKLab	oklab(36.45% -0.0125 -0.0323)
OKLCH	oklch(36.45% 0.035 248.8)
XYZ	xyz(4.4998, 4.8741, 8.2916)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304050 #504030

analogous

#305050 #304050 #303050

triadic

#304050 #503040 #405030

tetradic

#304050 #503050 #504030 #305030

square

#304050 #503050 #504030 #305030

split-complementary

#304050 #503030 #505030

monochromatic

#0B0F13 #19212A #304050 #475F76 #5E7D9C

Accessibility & contrast

On white

10.63

#304050 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#304050 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304050

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304050	#FFFFFF	#000000	##FFFFFF
##304050	1.00	10.63	1.97	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A4051

Deuteranopia (green-blind)

#363D50

Tritanopia (blue-blind)

#254445

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #304050;
/* rgb */ color: rgb(48, 64, 80);
/* oklch */ color: oklch(36.4% 0.035 248.8);

Tailwind

colors: {
  custom: {
    50: '#697481',
    500: '#304050',
    950: '#000000',
  },
}

SCSS

$custom: #304050;
$custom-light: #697481;
$custom-dark: #000000;

JSON

{
  "hex": "#304050",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 80
  },
  "hsl": {
    "h": 210,
    "s": 25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.36447,
    "c": 0.03468,
    "h": 248.8
  },
  "luminance": 0.04874
}

Semantic roles & 50–950 ramp

primary

#304050

secondary

#816E5B

accent

#9466C1

background

#F6F7F7

surface

#EBEDEE

border

#C6C8C9

text

#06080A

muted

#7A7B7C

Preview Lab

Preview with #304050

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

Preview Lab → · Contrast checker → · Palette generator →