#284BA9#284BA9

#284BA9 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.5% C 0.157 H 265.1°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#284BA9
RGB	rgb(40, 75, 169)
HSL	hsl(224, 62%, 41%)
HSV	hsv(224, 76%, 66%)
CMYK	cmyk(76.3%, 55.6%, 0%, 33.7%)
CIE-LAB	lab(34.69, 21.78, -54.12)
CIE-LCH	lch(34.69, 58.34, 291.92°)
OKLab	oklab(44.49% -0.0134 -0.156)
OKLCH	oklch(44.49% 0.157 265.1)
XYZ	xyz(10.5501, 8.3467, 38.5835)
Luminance	0.0835 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284BA9 #A98628

analogous

#288BA9 #284BA9 #4528A9

triadic

#284BA9 #A9284B #4BA928

tetradic

#284BA9 #A9288B #A98628 #28A945

square

#284BA9 #A9288B #A98628 #28A945

split-complementary

#284BA9 #A94528 #8BA928

monochromatic

#111F46 #1C3578 #284BA9 #3D65D1 #6F8CDD

Accessibility & contrast

On white

7.87

#284BA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#284BA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284BA9

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284BA9	#FFFFFF	#000000	##FFFFFF
##284BA9	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058AC

Deuteranopia (green-blind)

#004CA7

Tritanopia (blue-blind)

#006272

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #284ba9;
/* rgb */ color: rgb(40, 75, 169);
/* oklch */ color: oklch(44.5% 0.157 265.1);

Tailwind

colors: {
  custom: {
    50: '#757cc3',
    500: '#284ba9',
    950: '#000000',
  },
}

SCSS

$custom: #284ba9;
$custom-light: #757cc3;
$custom-dark: #000000;

JSON

{
  "hex": "#284ba9",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 169
  },
  "hsl": {
    "h": 223.721,
    "s": 61.722,
    "l": 40.98
  },
  "oklch": {
    "l": 0.44492,
    "c": 0.15661,
    "h": 265.1
  },
  "luminance": 0.08348
}

Semantic roles & 50–950 ramp

primary

#284BA9

secondary

#C4AB69

accent

#B943E5

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #284BA9

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

Preview Lab → · Contrast checker → · Palette generator →