#283397#283397

#283397 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.2% C 0.162 H 271.4°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#283397
RGB	rgb(40, 51, 151)
HSL	hsl(234, 58%, 37%)
HSV	hsv(234, 74%, 59%)
CMYK	cmyk(73.5%, 66.2%, 0%, 40.8%)
CIE-LAB	lab(26.88, 30.97, -55.98)
CIE-LCH	lch(26.88, 63.98, 298.95°)
OKLab	oklab(38.21% 0.0039 -0.1618)
OKLCH	oklch(38.21% 0.162 271.4)
XYZ	xyz(7.6429, 5.0524, 29.8446)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283397 #978C28

analogous

#286B97 #283397 #542897

triadic

#283397 #972833 #339728

tetradic

#283397 #97286B #978C28 #289754

square

#283397 #97286B #978C28 #289754

split-complementary

#283397 #975428 #6B9728

monochromatic

#0E1236 #1B2367 #283397 #3543C7 #646FD6

Accessibility & contrast

On white

10.44

#283397 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#283397 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283397

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283397	#FFFFFF	#000000	##FFFFFF
##283397	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459A

Deuteranopia (green-blind)

#003A95

Tritanopia (blue-blind)

#004D60

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #283397;
/* rgb */ color: rgb(40, 51, 151);
/* oklch */ color: oklch(38.2% 0.162 271.4);

Tailwind

colors: {
  custom: {
    50: '#736bb7',
    500: '#283397',
    950: '#000000',
  },
}

SCSS

$custom: #283397;
$custom-light: #736bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#283397",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 151
  },
  "hsl": {
    "h": 234.054,
    "s": 58.115,
    "l": 37.451
  },
  "oklch": {
    "l": 0.38214,
    "c": 0.16184,
    "h": 271.4
  },
  "luminance": 0.05053
}

Semantic roles & 50–950 ramp

primary

#283397

secondary

#BCB25F

accent

#D246E1

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #283397

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

Preview Lab → · Contrast checker → · Palette generator →