#284D85#284D85

#284D85 is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.3% C 0.103 H 258.5°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#284D85
RGB	rgb(40, 77, 133)
HSL	hsl(216, 54%, 34%)
HSV	hsv(216, 70%, 52%)
CMYK	cmyk(69.9%, 42.1%, 0%, 47.8%)
CIE-LAB	lab(32.81, 6.52, -35.32)
CIE-LCH	lch(32.81, 35.92, 280.45°)
OKLab	oklab(42.27% -0.0204 -0.1007)
OKLCH	oklch(42.27% 0.103 258.5)
XYZ	xyz(7.7611, 7.4515, 23.2150)
Luminance	0.0745 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284D85 #856028

analogous

#287C85 #284D85 #322885

triadic

#284D85 #85284D #4D8528

tetradic

#284D85 #85287C #856028 #288532

square

#284D85 #85287C #856028 #288532

split-complementary

#284D85 #853228 #7C8528

monochromatic

#0C1727 #1A3256 #284D85 #3668B4 #5A88CD

Accessibility & contrast

On white

8.43

#284D85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#284D85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284D85

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284D85	#FFFFFF	#000000	##FFFFFF
##284D85	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335287

Deuteranopia (green-blind)

#254984

Tritanopia (blue-blind)

#005A62

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #284d85;
/* rgb */ color: rgb(40, 77, 133);
/* oklch */ color: oklch(42.3% 0.103 258.5);

Tailwind

colors: {
  custom: {
    50: '#6d7ea9',
    500: '#284d85',
    950: '#000000',
  },
}

SCSS

$custom: #284d85;
$custom-light: #6d7ea9;
$custom-dark: #000000;

JSON

{
  "hex": "#284d85",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 133
  },
  "hsl": {
    "h": 216.129,
    "s": 53.757,
    "l": 33.922
  },
  "oklch": {
    "l": 0.42266,
    "c": 0.10277,
    "h": 258.5
  },
  "luminance": 0.07452
}

Semantic roles & 50–950 ramp

primary

#284D85

secondary

#B38E56

accent

#A34BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #284D85

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

Preview Lab → · Contrast checker → · Palette generator →