#284EA6#284EA6

#284EA6 is a dark, vivid blue. Relative luminance 0.087; OKLCH L 44.9% C 0.149 H 263.8°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#284EA6
RGB	rgb(40, 78, 166)
HSL	hsl(222, 61%, 40%)
HSV	hsv(222, 76%, 65%)
CMYK	cmyk(75.9%, 53%, 0%, 34.9%)
CIE-LAB	lab(35.31, 18.62, -51.34)
CIE-LCH	lch(35.31, 54.61, 289.93°)
OKLab	oklab(44.88% -0.016 -0.1478)
OKLCH	oklch(44.88% 0.149 263.8)
XYZ	xyz(10.4800, 8.6519, 37.1867)
Luminance	0.0865 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284EA6 #A68028

analogous

#288DA6 #284EA6 #4128A6

triadic

#284EA6 #A6284E #4EA628

tetradic

#284EA6 #A6288D #A68028 #28A641

square

#284EA6 #A6288D #A68028 #28A641

split-complementary

#284EA6 #A64128 #8DA628

monochromatic

#102043 #1C3775 #284EA6 #3B68D0 #6D8EDC

Accessibility & contrast

On white

7.69

#284EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#284EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284EA6

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284EA6	#FFFFFF	#000000	##FFFFFF
##284EA6	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1059A9

Deuteranopia (green-blind)

#004EA4

Tritanopia (blue-blind)

#006372

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #284ea6;
/* rgb */ color: rgb(40, 78, 166);
/* oklch */ color: oklch(44.9% 0.149 263.8);

Tailwind

colors: {
  custom: {
    50: '#747fc1',
    500: '#284ea6',
    950: '#000000',
  },
}

SCSS

$custom: #284ea6;
$custom-light: #747fc1;
$custom-dark: #000000;

JSON

{
  "hex": "#284ea6",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 166
  },
  "hsl": {
    "h": 221.905,
    "s": 61.165,
    "l": 40.392
  },
  "oklch": {
    "l": 0.44883,
    "c": 0.14867,
    "h": 263.8
  },
  "luminance": 0.08653
}

Semantic roles & 50–950 ramp

primary

#284EA6

secondary

#C2A767

accent

#B444E4

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #284EA6

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

Preview Lab → · Contrast checker → · Palette generator →