#284ABC#284ABC

#284ABC is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.9% C 0.184 H 266.3°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#284ABC
RGB	rgb(40, 74, 188)
HSL	hsl(226, 65%, 45%)
HSV	hsv(226, 79%, 74%)
CMYK	cmyk(78.7%, 60.6%, 0%, 26.3%)
CIE-LAB	lab(35.94, 29.69, -63.34)
CIE-LCH	lch(35.94, 69.95, 295.11°)
OKLab	oklab(45.9% -0.0119 -0.1831)
OKLCH	oklch(45.9% 0.184 266.3)
XYZ	xyz(12.3978, 8.9781, 48.6467)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284ABC #BC9A28

analogous

#2894BC #284ABC #5028BC

triadic

#284ABC #BC284A #4ABC28

tetradic

#284ABC #BC2894 #BC9A28 #28BC50

square

#284ABC #BC2894 #BC9A28 #28BC50

split-complementary

#284ABC #BC5028 #94BC28

monochromatic

#132257 #1D368A #284ABC #496AD8 #7B93E3

Accessibility & contrast

On white

7.51

#284ABC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#284ABC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284ABC

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284ABC	#FFFFFF	#000000	##FFFFFF
##284ABC	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC0

Deuteranopia (green-blind)

#004EBA

Tritanopia (blue-blind)

#00677C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #284abc;
/* rgb */ color: rgb(40, 74, 188);
/* oklch */ color: oklch(45.9% 0.184 266.3);

Tailwind

colors: {
  custom: {
    50: '#7a7cd1',
    500: '#284abc',
    950: '#000000',
  },
}

SCSS

$custom: #284abc;
$custom-light: #7a7cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#284abc",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 188
  },
  "hsl": {
    "h": 226.216,
    "s": 64.912,
    "l": 44.706
  },
  "oklch": {
    "l": 0.45899,
    "c": 0.18351,
    "h": 266.3
  },
  "luminance": 0.0898
}

Semantic roles & 50–950 ramp

primary

#284ABC

secondary

#CBB775

accent

#C140E8

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #284ABC

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

Preview Lab → · Contrast checker → · Palette generator →