#284A87#284A87

#284A87 is a dark, moderate blue. Relative luminance 0.071; OKLCH L 41.7% C 0.109 H 261.1°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#284A87
RGB	rgb(40, 74, 135)
HSL	hsl(219, 54%, 34%)
HSV	hsv(219, 70%, 53%)
CMYK	cmyk(70.4%, 45.2%, 0%, 47.1%)
CIE-LAB	lab(32.03, 9.29, -37.81)
CIE-LCH	lch(32.03, 38.93, 283.81°)
OKLab	oklab(41.7% -0.0169 -0.1081)
OKLCH	oklch(41.7% 0.109 261.1)
XYZ	xyz(7.6955, 7.0972, 23.8813)
Luminance	0.0710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284A87 #876528

analogous

#287A87 #284A87 #352887

triadic

#284A87 #87284A #4A8728

tetradic

#284A87 #87287A #876528 #288735

square

#284A87 #87287A #876528 #288735

split-complementary

#284A87 #873528 #7A8728

monochromatic

#0C1629 #1A3058 #284A87 #3664B6 #5B84CE

Accessibility & contrast

On white

8.68

#284A87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#284A87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284A87

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284A87	#FFFFFF	#000000	##FFFFFF
##284A87	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C5089

Deuteranopia (green-blind)

#1C4786

Tritanopia (blue-blind)

#005862

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #284a87;
/* rgb */ color: rgb(40, 74, 135);
/* oklch */ color: oklch(41.7% 0.109 261.1);

Tailwind

colors: {
  custom: {
    50: '#6e7caa',
    500: '#284a87',
    950: '#000000',
  },
}

SCSS

$custom: #284a87;
$custom-light: #6e7caa;
$custom-dark: #000000;

JSON

{
  "hex": "#284a87",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 135
  },
  "hsl": {
    "h": 218.526,
    "s": 54.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.41698,
    "c": 0.10938,
    "h": 261.1
  },
  "luminance": 0.07098
}

Semantic roles & 50–950 ramp

primary

#284A87

secondary

#B49357

accent

#A94ADE

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #284A87

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

Preview Lab → · Contrast checker → · Palette generator →