#284B97#284B97

#284B97 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.1% C 0.131 H 263.3°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#284B97
RGB	rgb(40, 75, 151)
HSL	hsl(221, 58%, 37%)
HSV	hsv(221, 74%, 59%)
CMYK	cmyk(73.5%, 50.3%, 0%, 40.8%)
CIE-LAB	lab(33.39, 14.82, -45.41)
CIE-LCH	lch(33.39, 47.77, 288.07°)
OKLab	oklab(43.08% -0.0152 -0.1304)
OKLCH	oklch(43.08% 0.131 263.3)
XYZ	xyz(8.9751, 7.7167, 30.2886)
Luminance	0.0772 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284B97 #977428

analogous

#288397 #284B97 #3C2897

triadic

#284B97 #97284B #4B9728

tetradic

#284B97 #972883 #977428 #28973C

square

#284B97 #972883 #977428 #28973C

split-complementary

#284B97 #973C28 #839728

monochromatic

#0E1B36 #1B3367 #284B97 #3563C7 #6488D6

Accessibility & contrast

On white

8.26

#284B97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#284B97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284B97

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284B97	#FFFFFF	#000000	##FFFFFF
##284B97	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F549A

Deuteranopia (green-blind)

#004A95

Tritanopia (blue-blind)

#005D6A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #284b97;
/* rgb */ color: rgb(40, 75, 151);
/* oklch */ color: oklch(43.1% 0.131 263.3);

Tailwind

colors: {
  custom: {
    50: '#717cb6',
    500: '#284b97',
    950: '#000000',
  },
}

SCSS

$custom: #284b97;
$custom-light: #717cb6;
$custom-dark: #000000;

JSON

{
  "hex": "#284b97",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 151
  },
  "hsl": {
    "h": 221.081,
    "s": 58.115,
    "l": 37.451
  },
  "oklch": {
    "l": 0.43083,
    "c": 0.1313,
    "h": 263.3
  },
  "luminance": 0.07718
}

Semantic roles & 50–950 ramp

primary

#284B97

secondary

#BC9E5F

accent

#B146E1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #284B97

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

Preview Lab → · Contrast checker → · Palette generator →