#284591#284591

#284591 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.3% C 0.130 H 265.3°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#284591
RGB	rgb(40, 69, 145)
HSL	hsl(223, 57%, 36%)
HSV	hsv(223, 72%, 57%)
CMYK	cmyk(72.4%, 52.4%, 0%, 43.1%)
CIE-LAB	lab(31.23, 16.55, -45.23)
CIE-LCH	lch(31.23, 48.16, 290.10°)
OKLab	oklab(41.31% -0.0106 -0.13)
OKLCH	oklch(41.31% 0.13 265.3)
XYZ	xyz(8.1122, 6.7509, 27.6581)
Luminance	0.0675 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284591 #917428

analogous

#287A91 #284591 #402891

triadic

#284591 #912845 #459128

tetradic

#284591 #91287A #917428 #289140

square

#284591 #91287A #917428 #289140

split-complementary

#284591 #914028 #7A9128

monochromatic

#0E1731 #1B2E61 #284591 #355CC1 #6080D3

Accessibility & contrast

On white

8.93

#284591 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#284591 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284591

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284591	#FFFFFF	#000000	##FFFFFF
##284591	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164F94

Deuteranopia (green-blind)

#00458F

Tritanopia (blue-blind)

#005764

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #284591;
/* rgb */ color: rgb(40, 69, 145);
/* oklch */ color: oklch(41.3% 0.130 265.3);

Tailwind

colors: {
  custom: {
    50: '#7078b2',
    500: '#284591',
    950: '#000000',
  },
}

SCSS

$custom: #284591;
$custom-light: #7078b2;
$custom-dark: #000000;

JSON

{
  "hex": "#284591",
  "rgb": {
    "r": 40,
    "g": 69,
    "b": 145
  },
  "hsl": {
    "h": 223.429,
    "s": 56.757,
    "l": 36.275
  },
  "oklch": {
    "l": 0.41308,
    "c": 0.1304,
    "h": 265.3
  },
  "luminance": 0.06752
}

Semantic roles & 50–950 ramp

primary

#284591

secondary

#B99F5C

accent

#B648E0

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #284591

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

Preview Lab → · Contrast checker → · Palette generator →