#284DBC#284DBC

#284DBC is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.5% C 0.180 H 265.6°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#284DBC
RGB	rgb(40, 77, 188)
HSL	hsl(225, 65%, 45%)
HSV	hsv(225, 79%, 74%)
CMYK	cmyk(78.7%, 59%, 0%, 26.3%)
CIE-LAB	lab(36.72, 27.72, -62.07)
CIE-LCH	lch(36.72, 67.98, 294.06°)
OKLab	oklab(46.48% -0.0138 -0.1793)
OKLCH	oklch(46.48% 0.18 265.6)
XYZ	xyz(12.6028, 9.3883, 48.7151)
Luminance	0.0939 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284DBC #BC9728

analogous

#2897BC #284DBC #4D28BC

triadic

#284DBC #BC284D #4DBC28

tetradic

#284DBC #BC2897 #BC9728 #28BC4D

square

#284DBC #BC2897 #BC9728 #28BC4D

split-complementary

#284DBC #BC4D28 #97BC28

monochromatic

#132457 #1D388A #284DBC #496DD8 #7B95E3

Accessibility & contrast

On white

7.30

#284DBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#284DBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284DBC

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284DBC	#FFFFFF	#000000	##FFFFFF
##284DBC	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)

#005DC0

Deuteranopia (green-blind)

#0050BA

Tritanopia (blue-blind)

#00697D

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #284dbc;
/* rgb */ color: rgb(40, 77, 188);
/* oklch */ color: oklch(46.5% 0.180 265.6);

Tailwind

colors: {
  custom: {
    50: '#7a7ed1',
    500: '#284dbc',
    950: '#000000',
  },
}

SCSS

$custom: #284dbc;
$custom-light: #7a7ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#284dbc",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 188
  },
  "hsl": {
    "h": 225,
    "s": 64.912,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46481,
    "c": 0.17988,
    "h": 265.6
  },
  "luminance": 0.0939
}

Semantic roles & 50–950 ramp

primary

#284DBC

secondary

#CBB675

accent

#BE40E8

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #284DBC

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

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