#284580#284580

#284580 is a dark, moderate blue. Relative luminance 0.063; OKLCH L 40.0% C 0.105 H 262.8°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#284580
RGB	rgb(40, 69, 128)
HSL	hsl(220, 52%, 33%)
HSV	hsv(220, 69%, 50%)
CMYK	cmyk(68.8%, 46.1%, 0%, 49.8%)
CIE-LAB	lab(30.07, 9.98, -36.60)
CIE-LCH	lch(30.07, 37.94, 285.25°)
OKLab	oklab(40.05% -0.0131 -0.1046)
OKLCH	oklch(40.05% 0.105 262.8)
XYZ	xyz(6.8981, 6.2652, 21.2637)
Luminance	0.0627 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284580 #806328

analogous

#287180 #284580 #372880

triadic

#284580 #802845 #458028

tetradic

#284580 #802871 #806328 #288037

square

#284580 #802871 #806328 #288037

split-complementary

#284580 #803728 #718028

monochromatic

#0B1323 #192C51 #284580 #375EAF #587ECB

Accessibility & contrast

On white

9.32

#284580 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#284580 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284580

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284580	#FFFFFF	#000000	##FFFFFF
##284580	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284B82

Deuteranopia (green-blind)

#19437F

Tritanopia (blue-blind)

#00535C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #284580;
/* rgb */ color: rgb(40, 69, 128);
/* oklch */ color: oklch(40.0% 0.105 262.8);

Tailwind

colors: {
  custom: {
    50: '#6c78a5',
    500: '#284580',
    950: '#000000',
  },
}

SCSS

$custom: #284580;
$custom-light: #6c78a5;
$custom-dark: #000000;

JSON

{
  "hex": "#284580",
  "rgb": {
    "r": 40,
    "g": 69,
    "b": 128
  },
  "hsl": {
    "h": 220.227,
    "s": 52.381,
    "l": 32.941
  },
  "oklch": {
    "l": 0.40048,
    "c": 0.10542,
    "h": 262.8
  },
  "luminance": 0.06266
}

Semantic roles & 50–950 ramp

primary

#284580

secondary

#B09254

accent

#AC4CDC

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #284580

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

Preview Lab → · Contrast checker → · Palette generator →