#284D87#284D87

#284D87 is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.4% C 0.106 H 259.1°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#284D87
RGB	rgb(40, 77, 135)
HSL	hsl(217, 54%, 34%)
HSV	hsv(217, 70%, 53%)
CMYK	cmyk(70.4%, 43%, 0%, 47.1%)
CIE-LAB	lab(32.94, 7.28, -36.36)
CIE-LCH	lch(32.94, 37.08, 281.33°)
OKLab	oklab(42.4% -0.02 -0.1037)
OKLCH	oklch(42.4% 0.106 259.1)
XYZ	xyz(7.9006, 7.5073, 23.9497)
Luminance	0.0751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284D87 #876228

analogous

#287D87 #284D87 #332887

triadic

#284D87 #87284D #4D8728

tetradic

#284D87 #87287D #876228 #288733

square

#284D87 #87287D #876228 #288733

split-complementary

#284D87 #873328 #7D8728

monochromatic

#0C1729 #1A3258 #284D87 #3668B6 #5B88CE

Accessibility & contrast

On white

8.39

#284D87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#284D87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284D87

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284D87	#FFFFFF	#000000	##FFFFFF
##284D87	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#325289

Deuteranopia (green-blind)

#234986

Tritanopia (blue-blind)

#005A63

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #284d87;
/* rgb */ color: rgb(40, 77, 135);
/* oklch */ color: oklch(42.4% 0.106 259.1);

Tailwind

colors: {
  custom: {
    50: '#6e7eaa',
    500: '#284d87',
    950: '#000000',
  },
}

SCSS

$custom: #284d87;
$custom-light: #6e7eaa;
$custom-dark: #000000;

JSON

{
  "hex": "#284d87",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 135
  },
  "hsl": {
    "h": 216.632,
    "s": 54.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.424,
    "c": 0.10566,
    "h": 259.1
  },
  "luminance": 0.07508
}

Semantic roles & 50–950 ramp

primary

#284D87

secondary

#B49057

accent

#A44ADE

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #284D87

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

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