#284EAD#284EAD

#284EAD is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.4% C 0.158 H 264.4°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#284EAD
RGB	rgb(40, 78, 173)
HSL	hsl(223, 62%, 42%)
HSV	hsv(223, 77%, 68%)
CMYK	cmyk(76.9%, 54.9%, 0%, 32.2%)
CIE-LAB	lab(35.82, 21.32, -54.68)
CIE-LCH	lch(35.82, 58.69, 291.30°)
OKLab	oklab(45.44% -0.0153 -0.1576)
OKLCH	oklch(45.44% 0.158 264.4)
XYZ	xyz(11.1396, 8.9158, 40.6609)
Luminance	0.0892 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284EAD #AD8728

analogous

#2891AD #284EAD #4528AD

triadic

#284EAD #AD284E #4EAD28

tetradic

#284EAD #AD2891 #AD8728 #28AD45

square

#284EAD #AD2891 #AD8728 #28AD45

split-complementary

#284EAD #AD4528 #91AD28

monochromatic

#11214A #1D387B #284EAD #3F6AD3 #7190DE

Accessibility & contrast

On white

7.54

#284EAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#284EAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284EAD

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284EAD	#FFFFFF	#000000	##FFFFFF
##284EAD	1.00	7.54	2.78	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB0

Deuteranopia (green-blind)

#004EAB

Tritanopia (blue-blind)

#006576

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #284ead;
/* rgb */ color: rgb(40, 78, 173);
/* oklch */ color: oklch(45.4% 0.158 264.4);

Tailwind

colors: {
  custom: {
    50: '#767fc6',
    500: '#284ead',
    950: '#000000',
  },
}

SCSS

$custom: #284ead;
$custom-light: #767fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#284ead",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 173
  },
  "hsl": {
    "h": 222.857,
    "s": 62.441,
    "l": 41.765
  },
  "oklch": {
    "l": 0.45438,
    "c": 0.15836,
    "h": 264.4
  },
  "luminance": 0.08917
}

Semantic roles & 50–950 ramp

primary

#284EAD

secondary

#C5AC6C

accent

#B742E6

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #284EAD

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

Preview Lab → · Contrast checker → · Palette generator →