#284D84#284D84

#284D84 is a dark, moderate blue. Relative luminance 0.074; OKLCH L 42.2% C 0.101 H 258.2°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#284D84
RGB	rgb(40, 77, 132)
HSL	hsl(216, 53%, 34%)
HSV	hsv(216, 70%, 52%)
CMYK	cmyk(69.7%, 41.7%, 0%, 48.2%)
CIE-LAB	lab(32.75, 6.13, -34.80)
CIE-LCH	lch(32.75, 35.34, 280.00°)
OKLab	oklab(42.2% -0.0207 -0.0992)
OKLCH	oklch(42.2% 0.101 258.2)
XYZ	xyz(7.6923, 7.4240, 22.8529)
Luminance	0.0742 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284D84 #845F28

analogous

#287B84 #284D84 #312884

triadic

#284D84 #84284D #4D8428

tetradic

#284D84 #84287B #845F28 #288431

square

#284D84 #84287B #845F28 #288431

split-complementary

#284D84 #843128 #7B8428

monochromatic

#0C1626 #1A3255 #284D84 #3668B3 #5A88CD

Accessibility & contrast

On white

8.45

#284D84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#284D84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284D84

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284D84	#FFFFFF	#000000	##FFFFFF
##284D84	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345286

Deuteranopia (green-blind)

#264983

Tritanopia (blue-blind)

#005A62

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #284d84;
/* rgb */ color: rgb(40, 77, 132);
/* oklch */ color: oklch(42.2% 0.101 258.2);

Tailwind

colors: {
  custom: {
    50: '#6d7ea8',
    500: '#284d84',
    950: '#000000',
  },
}

SCSS

$custom: #284d84;
$custom-light: #6d7ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#284d84",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 132
  },
  "hsl": {
    "h": 215.87,
    "s": 53.488,
    "l": 33.725
  },
  "oklch": {
    "l": 0.422,
    "c": 0.10131,
    "h": 258.2
  },
  "luminance": 0.07425
}

Semantic roles & 50–950 ramp

primary

#284D84

secondary

#B28D56

accent

#A24BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #284D84

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

Preview Lab → · Contrast checker → · Palette generator →