#284B85#284B85

#284B85 is a dark, moderate blue. Relative luminance 0.072; OKLCH L 41.8% C 0.105 H 259.9°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#284B85
RGB	rgb(40, 75, 133)
HSL	hsl(217, 54%, 34%)
HSV	hsv(217, 70%, 52%)
CMYK	cmyk(69.9%, 43.6%, 0%, 47.8%)
CIE-LAB	lab(32.20, 7.85, -36.29)
CIE-LCH	lch(32.20, 37.13, 282.21°)
OKLab	oklab(41.79% -0.0184 -0.1036)
OKLCH	oklch(41.79% 0.105 259.9)
XYZ	xyz(7.6233, 7.1760, 23.1691)
Luminance	0.0718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284B85 #856228

analogous

#287A85 #284B85 #342885

triadic

#284B85 #85284B #4B8528

tetradic

#284B85 #85287A #856228 #288534

square

#284B85 #85287A #856228 #288534

split-complementary

#284B85 #853428 #7A8528

monochromatic

#0C1627 #1A3056 #284B85 #3666B4 #5A85CD

Accessibility & contrast

On white

8.62

#284B85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#284B85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284B85

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284B85	#FFFFFF	#000000	##FFFFFF
##284B85	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305087

Deuteranopia (green-blind)

#214884

Tritanopia (blue-blind)

#005861

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #284b85;
/* rgb */ color: rgb(40, 75, 133);
/* oklch */ color: oklch(41.8% 0.105 259.9);

Tailwind

colors: {
  custom: {
    50: '#6d7ca9',
    500: '#284b85',
    950: '#000000',
  },
}

SCSS

$custom: #284b85;
$custom-light: #6d7ca9;
$custom-dark: #000000;

JSON

{
  "hex": "#284b85",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 133
  },
  "hsl": {
    "h": 217.419,
    "s": 53.757,
    "l": 33.922
  },
  "oklch": {
    "l": 0.41794,
    "c": 0.10521,
    "h": 259.9
  },
  "luminance": 0.07177
}

Semantic roles & 50–950 ramp

primary

#284B85

secondary

#B39056

accent

#A64BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #284B85

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

Preview Lab → · Contrast checker → · Palette generator →