#284A84#284A84

#284A84 is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.5% C 0.105 H 260.4°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#284A84
RGB	rgb(40, 74, 132)
HSL	hsl(218, 53%, 34%)
HSV	hsv(218, 70%, 52%)
CMYK	cmyk(69.7%, 43.9%, 0%, 48.2%)
CIE-LAB	lab(31.84, 8.14, -36.26)
CIE-LCH	lch(31.84, 37.16, 282.65°)
OKLab	oklab(41.49% -0.0175 -0.1035)
OKLCH	oklch(41.49% 0.105 260.4)
XYZ	xyz(7.4872, 7.0139, 22.7846)
Luminance	0.0702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284A84 #846228

analogous

#287884 #284A84 #342884

triadic

#284A84 #84284A #4A8428

tetradic

#284A84 #842878 #846228 #288434

square

#284A84 #842878 #846228 #288434

split-complementary

#284A84 #843428 #788428

monochromatic

#0C1526 #1A3055 #284A84 #3664B3 #5A84CD

Accessibility & contrast

On white

8.74

#284A84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#284A84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284A84

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284A84	#FFFFFF	#000000	##FFFFFF
##284A84	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4F86

Deuteranopia (green-blind)

#204783

Tritanopia (blue-blind)

#005760

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #284a84;
/* rgb */ color: rgb(40, 74, 132);
/* oklch */ color: oklch(41.5% 0.105 260.4);

Tailwind

colors: {
  custom: {
    50: '#6d7ca8',
    500: '#284a84',
    950: '#000000',
  },
}

SCSS

$custom: #284a84;
$custom-light: #6d7ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#284a84",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 132
  },
  "hsl": {
    "h": 217.826,
    "s": 53.488,
    "l": 33.725
  },
  "oklch": {
    "l": 0.41492,
    "c": 0.10499,
    "h": 260.4
  },
  "luminance": 0.07015
}

Semantic roles & 50–950 ramp

primary

#284A84

secondary

#B29056

accent

#A74BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #284A84

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

Preview Lab → · Contrast checker → · Palette generator →