#284A82#284A82

#284A82 is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.4% C 0.102 H 259.9°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#284A82
RGB	rgb(40, 74, 130)
HSL	hsl(217, 53%, 33%)
HSV	hsv(217, 69%, 51%)
CMYK	cmyk(69.2%, 43.1%, 0%, 49%)
CIE-LAB	lab(31.71, 7.37, -35.22)
CIE-LCH	lch(31.71, 35.98, 281.82°)
OKLab	oklab(41.36% -0.018 -0.1004)
OKLCH	oklch(41.36% 0.102 259.9)
XYZ	xyz(7.3517, 6.9597, 22.0707)
Luminance	0.0696 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284A82 #826028

analogous

#287782 #284A82 #332882

triadic

#284A82 #82284A #4A8228

tetradic

#284A82 #822877 #826028 #288233

square

#284A82 #822877 #826028 #288233

split-complementary

#284A82 #823328 #778228

monochromatic

#0B1524 #1A2F53 #284A82 #3665B1 #5984CC

Accessibility & contrast

On white

8.78

#284A82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#284A82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284A82

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284A82	#FFFFFF	#000000	##FFFFFF
##284A82	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304F84

Deuteranopia (green-blind)

#224781

Tritanopia (blue-blind)

#00575F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #284a82;
/* rgb */ color: rgb(40, 74, 130);
/* oklch */ color: oklch(41.4% 0.102 259.9);

Tailwind

colors: {
  custom: {
    50: '#6d7ca7',
    500: '#284a82',
    950: '#000000',
  },
}

SCSS

$custom: #284a82;
$custom-light: #6d7ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#284a82",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 130
  },
  "hsl": {
    "h": 217.333,
    "s": 52.941,
    "l": 33.333
  },
  "oklch": {
    "l": 0.41356,
    "c": 0.10205,
    "h": 259.9
  },
  "luminance": 0.0696
}

Semantic roles & 50–950 ramp

primary

#284A82

secondary

#B18E55

accent

#A64BDC

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #284A82

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

Preview Lab → · Contrast checker → · Palette generator →