#284DAC#284DAC

#284DAC is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.1% C 0.158 H 264.7°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#284DAC
RGB	rgb(40, 77, 172)
HSL	hsl(223, 62%, 42%)
HSV	hsv(223, 77%, 67%)
CMYK	cmyk(76.7%, 55.2%, 0%, 32.5%)
CIE-LAB	lab(35.47, 21.60, -54.65)
CIE-LCH	lch(35.47, 58.76, 291.57°)
OKLab	oklab(45.15% -0.0147 -0.1576)
OKLCH	oklch(45.15% 0.158 264.7)
XYZ	xyz(10.9727, 8.7362, 40.1297)
Luminance	0.0874 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284DAC #AC8728

analogous

#288FAC #284DAC #4528AC

triadic

#284DAC #AC284D #4DAC28

tetradic

#284DAC #AC288F #AC8728 #28AC45

square

#284DAC #AC288F #AC8728 #28AC45

split-complementary

#284DAC #AC4528 #8FAC28

monochromatic

#112149 #1C377A #284DAC #3F68D2 #718FDE

Accessibility & contrast

On white

7.64

#284DAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#284DAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284DAC

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284DAC	#FFFFFF	#000000	##FFFFFF
##284DAC	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AAF

Deuteranopia (green-blind)

#004EAA

Tritanopia (blue-blind)

#006475

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #284dac;
/* rgb */ color: rgb(40, 77, 172);
/* oklch */ color: oklch(45.1% 0.158 264.7);

Tailwind

colors: {
  custom: {
    50: '#767ec5',
    500: '#284dac',
    950: '#000000',
  },
}

SCSS

$custom: #284dac;
$custom-light: #767ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#284dac",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 172
  },
  "hsl": {
    "h": 223.182,
    "s": 62.264,
    "l": 41.569
  },
  "oklch": {
    "l": 0.4515,
    "c": 0.15824,
    "h": 264.7
  },
  "luminance": 0.08737
}

Semantic roles & 50–950 ramp

primary

#284DAC

secondary

#C5AC6B

accent

#B842E5

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #284DAC

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

Preview Lab → · Contrast checker → · Palette generator →