#284FCA#284FCA

#284FCA is a mid, vivid blue. Relative luminance 0.103; OKLCH L 48.1% C 0.196 H 265.7°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#284FCA
RGB	rgb(40, 79, 202)
HSL	hsl(226, 67%, 47%)
HSV	hsv(226, 80%, 79%)
CMYK	cmyk(80.2%, 60.9%, 0%, 20.8%)
CIE-LAB	lab(38.39, 31.68, -67.51)
CIE-LCH	lch(38.39, 74.58, 295.14°)
OKLab	oklab(48.08% -0.0147 -0.1953)
OKLCH	oklch(48.08% 0.196 265.7)
XYZ	xyz(14.3280, 10.3057, 57.0997)
Luminance	0.1031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284FCA #CAA328

analogous

#28A0CA #284FCA #5228CA

triadic

#284FCA #CA284F #4FCA28

tetradic

#284FCA #CA28A0 #CAA328 #28CA52

square

#284FCA #CA28A0 #CAA328 #28CA52

split-complementary

#284FCA #CA5228 #A0CA28

monochromatic

#142764 #1E3B97 #284FCA #5274DD #859DE7

Accessibility & contrast

On white

6.86

#284FCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#284FCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #284FCA

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284FCA	#FFFFFF	#000000	##FFFFFF
##284FCA	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062CE

Deuteranopia (green-blind)

#0053C8

Tritanopia (blue-blind)

#006F85

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #284fca;
/* rgb */ color: rgb(40, 79, 202);
/* oklch */ color: oklch(48.1% 0.196 265.7);

Tailwind

colors: {
  custom: {
    50: '#7d7fdb',
    500: '#284fca',
    950: '#000000',
  },
}

SCSS

$custom: #284fca;
$custom-light: #7d7fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#284fca",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 202
  },
  "hsl": {
    "h": 225.556,
    "s": 66.942,
    "l": 47.451
  },
  "oklch": {
    "l": 0.48078,
    "c": 0.19586,
    "h": 265.7
  },
  "luminance": 0.10307
}

Semantic roles & 50–950 ramp

primary

#284FCA

secondary

#D0BC7E

accent

#C03EEA

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #284FCA

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

Preview Lab → · Contrast checker → · Palette generator →