#284A73#284A73

#284A73 is a dark, moderate cyan. Relative luminance 0.066; OKLCH L 40.4% C 0.080 H 254.2°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#284A73
RGB	rgb(40, 74, 115)
HSL	hsl(213, 48%, 30%)
HSV	hsv(213, 65%, 45%)
CMYK	cmyk(65.2%, 35.7%, 0%, 54.9%)
CIE-LAB	lab(30.84, 1.68, -27.24)
CIE-LCH	lch(30.84, 27.29, 273.53°)
OKLab	oklab(40.4% -0.0218 -0.0771)
OKLCH	oklch(40.4% 0.08 254.2)
XYZ	xyz(6.4172, 6.5859, 17.1493)
Luminance	0.0659 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284A73 #735128

analogous

#286F73 #284A73 #2B2873

triadic

#284A73 #73284A #4A7328

tetradic

#284A73 #73286F #735128 #28732B

square

#284A73 #73286F #735128 #28732B

split-complementary

#284A73 #732B28 #6F7328

monochromatic

#081018 #182D46 #284A73 #3867A0 #5285C3

Accessibility & contrast

On white

9.06

#284A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#284A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284A73

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284A73	#FFFFFF	#000000	##FFFFFF
##284A73	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#384D75

Deuteranopia (green-blind)

#2E4572

Tritanopia (blue-blind)

#005359

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #284a73;
/* rgb */ color: rgb(40, 74, 115);
/* oklch */ color: oklch(40.4% 0.080 254.2);

Tailwind

colors: {
  custom: {
    50: '#6a7c9b',
    500: '#284a73',
    950: '#000000',
  },
}

SCSS

$custom: #284a73;
$custom-light: #6a7c9b;
$custom-dark: #000000;

JSON

{
  "hex": "#284a73",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 115
  },
  "hsl": {
    "h": 212.8,
    "s": 48.387,
    "l": 30.392
  },
  "oklch": {
    "l": 0.40396,
    "c": 0.08014,
    "h": 254.2
  },
  "luminance": 0.06586
}

Semantic roles & 50–950 ramp

primary

#284A73

secondary

#A57F52

accent

#9A50D8

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090E

muted

#7A7B7E

Preview Lab

Preview with #284A73

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

Preview Lab → · Contrast checker → · Palette generator →