#284AA9#284AA9

#284AA9 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.3% C 0.158 H 265.4°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#284AA9
RGB	rgb(40, 74, 169)
HSL	hsl(224, 62%, 41%)
HSV	hsv(224, 76%, 66%)
CMYK	cmyk(76.3%, 56.2%, 0%, 33.7%)
CIE-LAB	lab(34.42, 22.45, -54.57)
CIE-LCH	lch(34.42, 59.01, 292.36°)
OKLab	oklab(44.29% -0.0126 -0.1574)
OKLCH	oklch(44.29% 0.158 265.4)
XYZ	xyz(10.4828, 8.2121, 38.5610)
Luminance	0.0821 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284AA9 #A98728

analogous

#288AA9 #284AA9 #4628A9

triadic

#284AA9 #A9284A #4AA928

tetradic

#284AA9 #A9288A #A98728 #28A946

square

#284AA9 #A9288A #A98728 #28A946

split-complementary

#284AA9 #A94628 #8AA928

monochromatic

#111F46 #1C3478 #284AA9 #3D64D1 #6F8CDD

Accessibility & contrast

On white

7.95

#284AA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#284AA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284AA9

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284AA9	#FFFFFF	#000000	##FFFFFF
##284AA9	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AC

Deuteranopia (green-blind)

#004BA7

Tritanopia (blue-blind)

#006172

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #284aa9;
/* rgb */ color: rgb(40, 74, 169);
/* oklch */ color: oklch(44.3% 0.158 265.4);

Tailwind

colors: {
  custom: {
    50: '#757cc3',
    500: '#284aa9',
    950: '#000000',
  },
}

SCSS

$custom: #284aa9;
$custom-light: #757cc3;
$custom-dark: #000000;

JSON

{
  "hex": "#284aa9",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 169
  },
  "hsl": {
    "h": 224.186,
    "s": 61.722,
    "l": 40.98
  },
  "oklch": {
    "l": 0.44285,
    "c": 0.15788,
    "h": 265.4
  },
  "luminance": 0.08213
}

Semantic roles & 50–950 ramp

primary

#284AA9

secondary

#C4AC69

accent

#BA43E5

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #284AA9

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

Preview Lab → · Contrast checker → · Palette generator →