#284571#284571

#284571 is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.0% C 0.083 H 258.5°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#284571
RGB	rgb(40, 69, 113)
HSL	hsl(216, 48%, 30%)
HSV	hsv(216, 65%, 44%)
CMYK	cmyk(64.6%, 38.9%, 0%, 55.7%)
CIE-LAB	lab(29.16, 4.26, -28.65)
CIE-LCH	lch(29.16, 28.96, 278.45°)
OKLab	oklab(39.04% -0.0165 -0.0813)
OKLCH	oklch(39.04% 0.083 258.5)
XYZ	xyz(5.9828, 5.8991, 16.4429)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284571 #715428

analogous

#286A71 #284571 #2F2871

triadic

#284571 #712845 #457128

tetradic

#284571 #71286A #715428 #28712F

square

#284571 #71286A #715428 #28712F

split-complementary

#284571 #712F28 #6A7128

monochromatic

#080E17 #182944 #284571 #38619E #527EC2

Accessibility & contrast

On white

9.63

#284571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#284571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284571

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284571	#FFFFFF	#000000	##FFFFFF
##284571	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324873

Deuteranopia (green-blind)

#284270

Tritanopia (blue-blind)

#004F55

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #284571;
/* rgb */ color: rgb(40, 69, 113);
/* oklch */ color: oklch(39.0% 0.083 258.5);

Tailwind

colors: {
  custom: {
    50: '#69789a',
    500: '#284571',
    950: '#000000',
  },
}

SCSS

$custom: #284571;
$custom-light: #69789a;
$custom-dark: #000000;

JSON

{
  "hex": "#284571",
  "rgb": {
    "r": 40,
    "g": 69,
    "b": 113
  },
  "hsl": {
    "h": 216.164,
    "s": 47.712,
    "l": 30
  },
  "oklch": {
    "l": 0.39042,
    "c": 0.08295,
    "h": 258.5
  },
  "luminance": 0.059
}

Semantic roles & 50–950 ramp

primary

#284571

secondary

#A38352

accent

#A250D7

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #284571

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

Preview Lab → · Contrast checker → · Palette generator →