#284C85#284C85

#284C85 is a dark, moderate blue. Relative luminance 0.073; OKLCH L 42.0% C 0.104 H 259.2°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#284C85
RGB	rgb(40, 76, 133)
HSL	hsl(217, 54%, 34%)
HSV	hsv(217, 70%, 52%)
CMYK	cmyk(69.9%, 42.9%, 0%, 47.8%)
CIE-LAB	lab(32.51, 7.18, -35.81)
CIE-LCH	lch(32.51, 36.52, 281.34°)
OKLab	oklab(42.03% -0.0194 -0.1021)
OKLCH	oklch(42.03% 0.104 259.2)
XYZ	xyz(7.6916, 7.3127, 23.1919)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284C85 #856128

analogous

#287B85 #284C85 #332885

triadic

#284C85 #85284C #4C8528

tetradic

#284C85 #85287B #856128 #288533

square

#284C85 #85287B #856128 #288533

split-complementary

#284C85 #853328 #7B8528

monochromatic

#0C1627 #1A3156 #284C85 #3667B4 #5A87CD

Accessibility & contrast

On white

8.53

#284C85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#284C85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284C85

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284C85	#FFFFFF	#000000	##FFFFFF
##284C85	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315187

Deuteranopia (green-blind)

#234884

Tritanopia (blue-blind)

#005962

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #284c85;
/* rgb */ color: rgb(40, 76, 133);
/* oklch */ color: oklch(42.0% 0.104 259.2);

Tailwind

colors: {
  custom: {
    50: '#6d7da9',
    500: '#284c85',
    950: '#000000',
  },
}

SCSS

$custom: #284c85;
$custom-light: #6d7da9;
$custom-dark: #000000;

JSON

{
  "hex": "#284c85",
  "rgb": {
    "r": 40,
    "g": 76,
    "b": 133
  },
  "hsl": {
    "h": 216.774,
    "s": 53.757,
    "l": 33.922
  },
  "oklch": {
    "l": 0.4203,
    "c": 0.10398,
    "h": 259.2
  },
  "luminance": 0.07313
}

Semantic roles & 50–950 ramp

primary

#284C85

secondary

#B38F56

accent

#A44BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #284C85

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

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