#284188#284188

#284188 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.7% C 0.123 H 266.3°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#284188
RGB	rgb(40, 65, 136)
HSL	hsl(224, 55%, 35%)
HSV	hsv(224, 71%, 53%)
CMYK	cmyk(70.6%, 52.2%, 0%, 46.7%)
CIE-LAB	lab(29.43, 15.80, -42.59)
CIE-LCH	lch(29.43, 45.43, 290.35°)
OKLab	oklab(39.74% -0.0079 -0.1223)
OKLCH	oklch(39.74% 0.123 266.3)
XYZ	xyz(7.2078, 6.0086, 24.0677)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284188 #886F28

analogous

#287188 #284188 #3F2888

triadic

#284188 #882841 #418828

tetradic

#284188 #882871 #886F28 #28883F

square

#284188 #882871 #886F28 #28883F

split-complementary

#284188 #883F28 #718828

monochromatic

#0C1429 #1A2A59 #284188 #3658B7 #5B7ACF

Accessibility & contrast

On white

9.54

#284188 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#284188 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284188

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284188	#FFFFFF	#000000	##FFFFFF
##284188	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174A8B

Deuteranopia (green-blind)

#004187

Tritanopia (blue-blind)

#00525E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #284188;
/* rgb */ color: rgb(40, 65, 136);
/* oklch */ color: oklch(39.7% 0.123 266.3);

Tailwind

colors: {
  custom: {
    50: '#6e75ab',
    500: '#284188',
    950: '#000000',
  },
}

SCSS

$custom: #284188;
$custom-light: #6e75ab;
$custom-dark: #000000;

JSON

{
  "hex": "#284188",
  "rgb": {
    "r": 40,
    "g": 65,
    "b": 136
  },
  "hsl": {
    "h": 224.375,
    "s": 54.545,
    "l": 34.51
  },
  "oklch": {
    "l": 0.39735,
    "c": 0.12255,
    "h": 266.3
  },
  "luminance": 0.06009
}

Semantic roles & 50–950 ramp

primary

#284188

secondary

#B49C58

accent

#B74ADE

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #284188

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

Preview Lab → · Contrast checker → · Palette generator →