#284CBF#284CBF

#284CBF is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.5% C 0.185 H 265.9°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#284CBF
RGB	rgb(40, 76, 191)
HSL	hsl(226, 65%, 45%)
HSV	hsv(226, 79%, 75%)
CMYK	cmyk(79.1%, 60.2%, 0%, 25.1%)
CIE-LAB	lab(36.71, 29.51, -63.85)
CIE-LCH	lch(36.71, 70.34, 294.80°)
OKLab	oklab(46.55% -0.0131 -0.1846)
OKLCH	oklch(46.55% 0.185 265.9)
XYZ	xyz(12.8602, 9.3801, 50.4129)
Luminance	0.0938 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284CBF #BF9B28

analogous

#2898BF #284CBF #4F28BF

triadic

#284CBF #BF284C #4CBF28

tetradic

#284CBF #BF2898 #BF9B28 #28BF4F

square

#284CBF #BF2898 #BF9B28 #28BF4F

split-complementary

#284CBF #BF4F28 #98BF28

monochromatic

#13245A #1D388C #284CBF #4B6DD9 #7E96E4

Accessibility & contrast

On white

7.30

#284CBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#284CBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284CBF

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284CBF	#FFFFFF	#000000	##FFFFFF
##284CBF	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EC3

Deuteranopia (green-blind)

#0050BD

Tritanopia (blue-blind)

#00697E

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #284cbf;
/* rgb */ color: rgb(40, 76, 191);
/* oklch */ color: oklch(46.5% 0.185 265.9);

Tailwind

colors: {
  custom: {
    50: '#7b7dd3',
    500: '#284cbf',
    950: '#000000',
  },
}

SCSS

$custom: #284cbf;
$custom-light: #7b7dd3;
$custom-dark: #000000;

JSON

{
  "hex": "#284cbf",
  "rgb": {
    "r": 40,
    "g": 76,
    "b": 191
  },
  "hsl": {
    "h": 225.695,
    "s": 65.368,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46546,
    "c": 0.18506,
    "h": 265.9
  },
  "luminance": 0.09382
}

Semantic roles & 50–950 ramp

primary

#284CBF

secondary

#CCB877

accent

#C03FE8

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #284CBF

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

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