#284F93#284F93

#284F93 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 43.7% C 0.121 H 260.7°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#284F93
RGB	rgb(40, 79, 147)
HSL	hsl(218, 57%, 37%)
HSV	hsv(218, 73%, 58%)
CMYK	cmyk(72.8%, 46.3%, 0%, 42.4%)
CIE-LAB	lab(34.29, 10.58, -41.53)
CIE-LCH	lch(34.29, 42.85, 284.30°)
OKLab	oklab(43.69% -0.0196 -0.1189)
OKLCH	oklch(43.69% 0.121 260.7)
XYZ	xyz(8.9356, 8.1487, 28.7000)
Luminance	0.0815 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284F93 #936C28

analogous

#288593 #284F93 #372893

triadic

#284F93 #93284F #4F9328

tetradic

#284F93 #932885 #936C28 #289337

square

#284F93 #932885 #936C28 #289337

split-complementary

#284F93 #933728 #859328

monochromatic

#0E1B33 #1B3563 #284F93 #3569C3 #618BD4

Accessibility & contrast

On white

7.98

#284F93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#284F93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284F93

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284F93	#FFFFFF	#000000	##FFFFFF
##284F93	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5696

Deuteranopia (green-blind)

#174C92

Tritanopia (blue-blind)

#005F6A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #284f93;
/* rgb */ color: rgb(40, 79, 147);
/* oklch */ color: oklch(43.7% 0.121 260.7);

Tailwind

colors: {
  custom: {
    50: '#707fb3',
    500: '#284f93',
    950: '#000000',
  },
}

SCSS

$custom: #284f93;
$custom-light: #707fb3;
$custom-dark: #000000;

JSON

{
  "hex": "#284f93",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 147
  },
  "hsl": {
    "h": 218.131,
    "s": 57.219,
    "l": 36.667
  },
  "oklch": {
    "l": 0.43691,
    "c": 0.12051,
    "h": 260.7
  },
  "luminance": 0.0815
}

Semantic roles & 50–950 ramp

primary

#284F93

secondary

#BA985D

accent

#A947E0

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #284F93

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

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