#284CD1#284CD1

#284CD1 is a mid, highly saturated blue. Relative luminance 0.102; OKLCH L 48.2% C 0.208 H 266.4°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#284CD1
RGB	rgb(40, 76, 209)
HSL	hsl(227, 68%, 49%)
HSV	hsv(227, 81%, 82%)
CMYK	cmyk(80.9%, 63.6%, 0%, 18%)
CIE-LAB	lab(38.24, 36.20, -71.81)
CIE-LCH	lch(38.24, 80.42, 296.76°)
OKLab	oklab(48.15% -0.0132 -0.2079)
OKLCH	oklch(48.15% 0.208 266.4)
XYZ	xyz(14.9641, 10.2217, 61.4935)
Luminance	0.1022 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284CD1 #D1AD28

analogous

#28A1D1 #284CD1 #5928D1

triadic

#284CD1 #D1284C #4CD128

tetradic

#284CD1 #D128A1 #D1AD28 #28D159

square

#284CD1 #D128A1 #D1AD28 #28D159

split-complementary

#284CD1 #D15928 #A1D128

monochromatic

#14276A #1E399E #284CD1 #5774DF #8B9FE9

Accessibility & contrast

On white

6.90

#284CD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#284CD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #284CD1

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284CD1	#FFFFFF	#000000	##FFFFFF
##284CD1	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062D5

Deuteranopia (green-blind)

#0052CF

Tritanopia (blue-blind)

#006F87

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #284cd1;
/* rgb */ color: rgb(40, 76, 209);
/* oklch */ color: oklch(48.2% 0.208 266.4);

Tailwind

colors: {
  custom: {
    50: '#7f7de0',
    500: '#284cd1',
    950: '#000000',
  },
}

SCSS

$custom: #284cd1;
$custom-light: #7f7de0;
$custom-dark: #000000;

JSON

{
  "hex": "#284cd1",
  "rgb": {
    "r": 40,
    "g": 76,
    "b": 209
  },
  "hsl": {
    "h": 227.219,
    "s": 67.871,
    "l": 48.824
  },
  "oklch": {
    "l": 0.48153,
    "c": 0.20832,
    "h": 266.4
  },
  "luminance": 0.10223
}

Semantic roles & 50–950 ramp

primary

#284CD1

secondary

#D3C182

accent

#C63DEB

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #284CD1

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

Preview Lab → · Contrast checker → · Palette generator →