#284E91#284E91

#284E91 is a dark, moderate blue. Relative luminance 0.079; OKLCH L 43.3% C 0.119 H 260.8°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#284E91
RGB	rgb(40, 78, 145)
HSL	hsl(218, 57%, 36%)
HSV	hsv(218, 72%, 57%)
CMYK	cmyk(72.4%, 46.2%, 0%, 43.1%)
CIE-LAB	lab(33.86, 10.48, -40.99)
CIE-LCH	lch(33.86, 42.31, 284.34°)
OKLab	oklab(43.32% -0.019 -0.1174)
OKLCH	oklch(43.32% 0.119 260.8)
XYZ	xyz(8.7085, 7.9433, 27.8568)
Luminance	0.0794 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284E91 #916B28

analogous

#288391 #284E91 #372891

triadic

#284E91 #91284E #4E9128

tetradic

#284E91 #912883 #916B28 #289137

square

#284E91 #912883 #916B28 #289137

split-complementary

#284E91 #913728 #839128

monochromatic

#0E1A31 #1B3461 #284E91 #3568C1 #608AD3

Accessibility & contrast

On white

8.11

#284E91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#284E91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284E91

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284E91	#FFFFFF	#000000	##FFFFFF
##284E91	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C5594

Deuteranopia (green-blind)

#174B90

Tritanopia (blue-blind)

#005E68

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #284e91;
/* rgb */ color: rgb(40, 78, 145);
/* oklch */ color: oklch(43.3% 0.119 260.8);

Tailwind

colors: {
  custom: {
    50: '#707fb2',
    500: '#284e91',
    950: '#000000',
  },
}

SCSS

$custom: #284e91;
$custom-light: #707fb2;
$custom-dark: #000000;

JSON

{
  "hex": "#284e91",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 145
  },
  "hsl": {
    "h": 218.286,
    "s": 56.757,
    "l": 36.275
  },
  "oklch": {
    "l": 0.43321,
    "c": 0.11888,
    "h": 260.8
  },
  "luminance": 0.07944
}

Semantic roles & 50–950 ramp

primary

#284E91

secondary

#B9975C

accent

#A948E0

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #284E91

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

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