#284D90#284D90

#284D90 is a dark, moderate blue. Relative luminance 0.078; OKLCH L 43.0% C 0.119 H 261.2°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#284D90
RGB	rgb(40, 77, 144)
HSL	hsl(219, 57%, 36%)
HSV	hsv(219, 72%, 56%)
CMYK	cmyk(72.2%, 46.5%, 0%, 43.5%)
CIE-LAB	lab(33.50, 10.76, -40.96)
CIE-LCH	lch(33.50, 42.35, 284.71°)
OKLab	oklab(43.02% -0.0182 -0.1173)
OKLCH	oklch(43.02% 0.119 261.2)
XYZ	xyz(8.5612, 7.7716, 27.4290)
Luminance	0.0777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284D90 #906B28

analogous

#288190 #284D90 #372890

triadic

#284D90 #90284D #4D9028

tetradic

#284D90 #902881 #906B28 #289037

square

#284D90 #902881 #906B28 #289037

split-complementary

#284D90 #903728 #819028

monochromatic

#0D1A30 #1B3360 #284D90 #3567C0 #6089D3

Accessibility & contrast

On white

8.22

#284D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#284D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284D90

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284D90	#FFFFFF	#000000	##FFFFFF
##284D90	1.00	8.22	2.55	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5493

Deuteranopia (green-blind)

#164A8F

Tritanopia (blue-blind)

#005D67

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #284d90;
/* rgb */ color: rgb(40, 77, 144);
/* oklch */ color: oklch(43.0% 0.119 261.2);

Tailwind

colors: {
  custom: {
    50: '#6f7eb1',
    500: '#284d90',
    950: '#000000',
  },
}

SCSS

$custom: #284d90;
$custom-light: #6f7eb1;
$custom-dark: #000000;

JSON

{
  "hex": "#284d90",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 144
  },
  "hsl": {
    "h": 218.654,
    "s": 56.522,
    "l": 36.078
  },
  "oklch": {
    "l": 0.43021,
    "c": 0.11869,
    "h": 261.2
  },
  "luminance": 0.07772
}

Semantic roles & 50–950 ramp

primary

#284D90

secondary

#B8975C

accent

#AA48E0

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#080911

muted

#7B7B80

Preview Lab

Preview with #284D90

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

Preview Lab → · Contrast checker → · Palette generator →