#304B60#304B60

#304B60 is a dark, muted cyan. Relative luminance 0.065; OKLCH L 40.1% C 0.048 H 242.8°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#304B60
RGB	rgb(48, 75, 96)
HSL	hsl(206, 33%, 28%)
HSV	hsv(206, 50%, 38%)
CMYK	cmyk(50%, 21.9%, 0%, 62.4%)
CIE-LAB	lab(30.65, -3.72, -15.49)
CIE-LCH	lch(30.65, 15.93, 256.49°)
OKLab	oklab(40.05% -0.0221 -0.043)
OKLCH	oklch(40.05% 0.048 242.8)
XYZ	xyz(5.8456, 6.5046, 12.0116)
Luminance	0.0650 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304B60 #604530

analogous

#30605D #304B60 #303360

triadic

#304B60 #60304B #4B6030

tetradic

#304B60 #5D3060 #604530 #336030

square

#304B60 #5D3060 #604530 #336030

split-complementary

#304B60 #603033 #605D30

monochromatic

#0A1014 #1C2B37 #304B60 #446B89 #5D8AAE

Accessibility & contrast

On white

9.13

#304B60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#304B60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304B60

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304B60	#FFFFFF	#000000	##FFFFFF
##304B60	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424B61

Deuteranopia (green-blind)

#3C4660

Tritanopia (blue-blind)

#1B5052

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #304b60;
/* rgb */ color: rgb(48, 75, 96);
/* oklch */ color: oklch(40.1% 0.048 242.8);

Tailwind

colors: {
  custom: {
    50: '#6b7d8d',
    500: '#304b60',
    950: '#000000',
  },
}

SCSS

$custom: #304b60;
$custom-light: #6b7d8d;
$custom-dark: #000000;

JSON

{
  "hex": "#304b60",
  "rgb": {
    "r": 48,
    "g": 75,
    "b": 96
  },
  "hsl": {
    "h": 206.25,
    "s": 33.333,
    "l": 28.235
  },
  "oklch": {
    "l": 0.4005,
    "c": 0.0484,
    "h": 242.8
  },
  "luminance": 0.06505
}

Semantic roles & 50–950 ramp

primary

#304B60

secondary

#91725A

accent

#8D5EC9

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#07090C

muted

#7A7B7D

Preview Lab

Preview with #304B60

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

Preview Lab → · Contrast checker → · Palette generator →