#284A85#284A85

#284A85 is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.6% C 0.106 H 260.6°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#284A85
RGB	rgb(40, 74, 133)
HSL	hsl(218, 54%, 34%)
HSV	hsv(218, 70%, 52%)
CMYK	cmyk(69.9%, 44.4%, 0%, 47.8%)
CIE-LAB	lab(31.90, 8.52, -36.78)
CIE-LCH	lch(31.90, 37.75, 283.05°)
OKLab	oklab(41.56% -0.0173 -0.105)
OKLCH	oklch(41.56% 0.106 260.6)
XYZ	xyz(7.5560, 7.0414, 23.1467)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284A85 #856328

analogous

#287985 #284A85 #352885

triadic

#284A85 #85284A #4A8528

tetradic

#284A85 #852879 #856328 #288535

square

#284A85 #852879 #856328 #288535

split-complementary

#284A85 #853528 #798528

monochromatic

#0C1627 #1A3056 #284A85 #3664B4 #5A84CD

Accessibility & contrast

On white

8.72

#284A85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#284A85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284A85

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284A85	#FFFFFF	#000000	##FFFFFF
##284A85	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5087

Deuteranopia (green-blind)

#1E4784

Tritanopia (blue-blind)

#005861

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #284a85;
/* rgb */ color: rgb(40, 74, 133);
/* oklch */ color: oklch(41.6% 0.106 260.6);

Tailwind

colors: {
  custom: {
    50: '#6d7ca9',
    500: '#284a85',
    950: '#000000',
  },
}

SCSS

$custom: #284a85;
$custom-light: #6d7ca9;
$custom-dark: #000000;

JSON

{
  "hex": "#284a85",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 133
  },
  "hsl": {
    "h": 218.065,
    "s": 53.757,
    "l": 33.922
  },
  "oklch": {
    "l": 0.4156,
    "c": 0.10645,
    "h": 260.6
  },
  "luminance": 0.07042
}

Semantic roles & 50–950 ramp

primary

#284A85

secondary

#B39156

accent

#A84BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #284A85

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

Preview Lab → · Contrast checker → · Palette generator →