#284CAA#284CAA

#284CAA is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.8% C 0.157 H 264.9°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#284CAA
RGB	rgb(40, 76, 170)
HSL	hsl(223, 62%, 41%)
HSV	hsv(223, 76%, 67%)
CMYK	cmyk(76.5%, 55.3%, 0%, 33.3%)
CIE-LAB	lab(35.05, 21.50, -54.15)
CIE-LCH	lch(35.05, 58.26, 291.65°)
OKLab	oklab(44.78% -0.0141 -0.1561)
OKLCH	oklch(44.78% 0.157 264.9)
XYZ	xyz(10.7126, 8.5211, 39.1026)
Luminance	0.0852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284CAA #AA8628

analogous

#288DAA #284CAA #4528AA

triadic

#284CAA #AA284C #4CAA28

tetradic

#284CAA #AA288D #AA8628 #28AA45

square

#284CAA #AA288D #AA8628 #28AA45

split-complementary

#284CAA #AA4528 #8DAA28

monochromatic

#112047 #1C3678 #284CAA #3E67D2 #6F8EDD

Accessibility & contrast

On white

7.77

#284CAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#284CAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284CAA

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284CAA	#FFFFFF	#000000	##FFFFFF
##284CAA	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059AD

Deuteranopia (green-blind)

#004DA8

Tritanopia (blue-blind)

#006373

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #284caa;
/* rgb */ color: rgb(40, 76, 170);
/* oklch */ color: oklch(44.8% 0.157 264.9);

Tailwind

colors: {
  custom: {
    50: '#757dc4',
    500: '#284caa',
    950: '#000000',
  },
}

SCSS

$custom: #284caa;
$custom-light: #757dc4;
$custom-dark: #000000;

JSON

{
  "hex": "#284caa",
  "rgb": {
    "r": 40,
    "g": 76,
    "b": 170
  },
  "hsl": {
    "h": 223.385,
    "s": 61.905,
    "l": 41.176
  },
  "oklch": {
    "l": 0.4478,
    "c": 0.15674,
    "h": 264.9
  },
  "luminance": 0.08522
}

Semantic roles & 50–950 ramp

primary

#284CAA

secondary

#C4AB6A

accent

#B843E5

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #284CAA

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

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