#284A89#284A89

#284A89 is a dark, moderate blue. Relative luminance 0.072; OKLCH L 41.8% C 0.112 H 261.5°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#284A89
RGB	rgb(40, 74, 137)
HSL	hsl(219, 55%, 35%)
HSV	hsv(219, 71%, 54%)
CMYK	cmyk(70.8%, 46%, 0%, 46.3%)
CIE-LAB	lab(32.16, 10.07, -38.84)
CIE-LCH	lch(32.16, 40.12, 284.53°)
OKLab	oklab(41.84% -0.0165 -0.1111)
OKLCH	oklch(41.84% 0.112 261.5)
XYZ	xyz(7.8376, 7.1540, 24.6299)
Luminance	0.0716 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284A89 #896728

analogous

#287B89 #284A89 #372889

triadic

#284A89 #89284A #4A8928

tetradic

#284A89 #89287B #896728 #288937

square

#284A89 #89287B #896728 #288937

split-complementary

#284A89 #893728 #7B8928

monochromatic

#0C172A #1A305A #284A89 #3664B8 #5C84CF

Accessibility & contrast

On white

8.64

#284A89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#284A89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284A89

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284A89	#FFFFFF	#000000	##FFFFFF
##284A89	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B508B

Deuteranopia (green-blind)

#194788

Tritanopia (blue-blind)

#005963

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #284a89;
/* rgb */ color: rgb(40, 74, 137);
/* oklch */ color: oklch(41.8% 0.112 261.5);

Tailwind

colors: {
  custom: {
    50: '#6e7cac',
    500: '#284a89',
    950: '#000000',
  },
}

SCSS

$custom: #284a89;
$custom-light: #6e7cac;
$custom-dark: #000000;

JSON

{
  "hex": "#284a89",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 137
  },
  "hsl": {
    "h": 218.969,
    "s": 54.802,
    "l": 34.706
  },
  "oklch": {
    "l": 0.41838,
    "c": 0.11231,
    "h": 261.5
  },
  "luminance": 0.07155
}

Semantic roles & 50–950 ramp

primary

#284A89

secondary

#B59458

accent

#AA4ADE

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #284A89

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

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