#284A91#284A91

#284A91 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.4% C 0.124 H 263.0°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#284A91
RGB	rgb(40, 74, 145)
HSL	hsl(221, 57%, 36%)
HSV	hsv(221, 72%, 57%)
CMYK	cmyk(72.4%, 49%, 0%, 43.1%)
CIE-LAB	lab(32.68, 13.16, -42.89)
CIE-LCH	lch(32.68, 44.86, 287.06°)
OKLab	oklab(42.41% -0.0152 -0.123)
OKLCH	oklch(42.41% 0.124 263)
XYZ	xyz(8.4329, 7.3921, 27.7650)
Luminance	0.0739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284A91 #916F28

analogous

#287F91 #284A91 #3A2891

triadic

#284A91 #91284A #4A9128

tetradic

#284A91 #91287F #916F28 #28913A

square

#284A91 #91287F #916F28 #28913A

split-complementary

#284A91 #913A28 #7F9128

monochromatic

#0E1931 #1B3261 #284A91 #3562C1 #6085D3

Accessibility & contrast

On white

8.47

#284A91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#284A91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284A91

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284A91	#FFFFFF	#000000	##FFFFFF
##284A91	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245294

Deuteranopia (green-blind)

#074890

Tritanopia (blue-blind)

#005B66

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #284a91;
/* rgb */ color: rgb(40, 74, 145);
/* oklch */ color: oklch(42.4% 0.124 263.0);

Tailwind

colors: {
  custom: {
    50: '#707cb2',
    500: '#284a91',
    950: '#000000',
  },
}

SCSS

$custom: #284a91;
$custom-light: #707cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#284a91",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 145
  },
  "hsl": {
    "h": 220.571,
    "s": 56.757,
    "l": 36.275
  },
  "oklch": {
    "l": 0.42414,
    "c": 0.12394,
    "h": 263
  },
  "luminance": 0.07393
}

Semantic roles & 50–950 ramp

primary

#284A91

secondary

#B99B5C

accent

#AF48E0

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #284A91

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

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