#284D97#284D97

#284D97 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.5% C 0.129 H 262.4°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#284D97
RGB	rgb(40, 77, 151)
HSL	hsl(220, 58%, 37%)
HSV	hsv(220, 74%, 59%)
CMYK	cmyk(73.5%, 49%, 0%, 40.8%)
CIE-LAB	lab(33.97, 13.47, -44.47)
CIE-LCH	lch(33.97, 46.47, 286.85°)
OKLab	oklab(43.53% -0.017 -0.1276)
OKLCH	oklch(43.53% 0.129 262.4)
XYZ	xyz(9.1129, 7.9923, 30.3345)
Luminance	0.0799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284D97 #977228

analogous

#288497 #284D97 #3B2897

triadic

#284D97 #97284D #4D9728

tetradic

#284D97 #972884 #977228 #28973B

square

#284D97 #972884 #977228 #28973B

split-complementary

#284D97 #973B28 #849728

monochromatic

#0E1C36 #1B3467 #284D97 #3566C7 #648AD6

Accessibility & contrast

On white

8.08

#284D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#284D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284D97

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284D97	#FFFFFF	#000000	##FFFFFF
##284D97	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24559A

Deuteranopia (green-blind)

#044B96

Tritanopia (blue-blind)

#005E6A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #284d97;
/* rgb */ color: rgb(40, 77, 151);
/* oklch */ color: oklch(43.5% 0.129 262.4);

Tailwind

colors: {
  custom: {
    50: '#717eb6',
    500: '#284d97',
    950: '#000000',
  },
}

SCSS

$custom: #284d97;
$custom-light: #717eb6;
$custom-dark: #000000;

JSON

{
  "hex": "#284d97",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 151
  },
  "hsl": {
    "h": 220,
    "s": 58.115,
    "l": 37.451
  },
  "oklch": {
    "l": 0.43527,
    "c": 0.12875,
    "h": 262.4
  },
  "luminance": 0.07993
}

Semantic roles & 50–950 ramp

primary

#284D97

secondary

#BC9D5F

accent

#AE46E1

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #284D97

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

Preview Lab → · Contrast checker → · Palette generator →