#284BD1#284BD1

#284BD1 is a mid, highly saturated blue. Relative luminance 0.101; OKLCH L 48.0% C 0.209 H 266.5°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#284BD1
RGB	rgb(40, 75, 209)
HSL	hsl(228, 68%, 49%)
HSV	hsv(228, 81%, 82%)
CMYK	cmyk(80.9%, 64.1%, 0%, 18%)
CIE-LAB	lab(37.99, 36.84, -72.20)
CIE-LCH	lch(37.99, 81.06, 297.03°)
OKLab	oklab(47.97% -0.0127 -0.2091)
OKLCH	oklch(47.97% 0.209 266.5)
XYZ	xyz(14.8957, 10.0849, 61.4708)
Luminance	0.1009 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284BD1 #D1AE28

analogous

#28A0D1 #284BD1 #5A28D1

triadic

#284BD1 #D1284B #4BD128

tetradic

#284BD1 #D128A0 #D1AE28 #28D15A

square

#284BD1 #D128A0 #D1AE28 #28D15A

split-complementary

#284BD1 #D15A28 #A0D128

monochromatic

#14266A #1E399E #284BD1 #5773DF #8B9EE9

Accessibility & contrast

On white

6.96

#284BD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#284BD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #284BD1

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284BD1	#FFFFFF	#000000	##FFFFFF
##284BD1	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062D5

Deuteranopia (green-blind)

#0052CE

Tritanopia (blue-blind)

#006F87

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #284bd1;
/* rgb */ color: rgb(40, 75, 209);
/* oklch */ color: oklch(48.0% 0.209 266.5);

Tailwind

colors: {
  custom: {
    50: '#7f7de0',
    500: '#284bd1',
    950: '#000000',
  },
}

SCSS

$custom: #284bd1;
$custom-light: #7f7de0;
$custom-dark: #000000;

JSON

{
  "hex": "#284bd1",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 209
  },
  "hsl": {
    "h": 227.574,
    "s": 67.871,
    "l": 48.824
  },
  "oklch": {
    "l": 0.47974,
    "c": 0.20945,
    "h": 266.5
  },
  "luminance": 0.10087
}

Semantic roles & 50–950 ramp

primary

#284BD1

secondary

#D3C282

accent

#C73DEB

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #284BD1

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

Preview Lab → · Contrast checker → · Palette generator →