#284579#284579

#284579 is a dark, moderate blue. Relative luminance 0.061; OKLCH L 39.6% C 0.095 H 261.2°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#284579
RGB	rgb(40, 69, 121)
HSL	hsl(219, 50%, 32%)
HSV	hsv(219, 67%, 47%)
CMYK	cmyk(66.9%, 43%, 0%, 52.5%)
CIE-LAB	lab(29.63, 7.29, -32.93)
CIE-LCH	lch(29.63, 33.73, 282.48°)
OKLab	oklab(39.57% -0.0146 -0.0938)
OKLCH	oklch(39.57% 0.095 261.2)
XYZ	xyz(6.4532, 6.0872, 18.9203)
Luminance	0.0609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284579 #795C28

analogous

#286E79 #284579 #342879

triadic

#284579 #792845 #457928

tetradic

#284579 #79286E #795C28 #287934

square

#284579 #79286E #795C28 #287934

split-complementary

#284579 #793428 #6E7928

monochromatic

#0A111D #192B4B #284579 #375FA7 #557EC7

Accessibility & contrast

On white

9.47

#284579 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#284579 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284579

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284579	#FFFFFF	#000000	##FFFFFF
##284579	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4A7B

Deuteranopia (green-blind)

#214278

Tritanopia (blue-blind)

#005159

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #284579;
/* rgb */ color: rgb(40, 69, 121);
/* oklch */ color: oklch(39.6% 0.095 261.2);

Tailwind

colors: {
  custom: {
    50: '#6b78a0',
    500: '#284579',
    950: '#000000',
  },
}

SCSS

$custom: #284579;
$custom-light: #6b78a0;
$custom-dark: #000000;

JSON

{
  "hex": "#284579",
  "rgb": {
    "r": 40,
    "g": 69,
    "b": 121
  },
  "hsl": {
    "h": 218.519,
    "s": 50.311,
    "l": 31.569
  },
  "oklch": {
    "l": 0.39565,
    "c": 0.09495,
    "h": 261.2
  },
  "luminance": 0.06088
}

Semantic roles & 50–950 ramp

primary

#284579

secondary

#AB8B52

accent

#A84EDA

background

#F6F7F9

surface

#ECEDF2

border

#C7C8CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #284579

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

Preview Lab → · Contrast checker → · Palette generator →