#283497#283497

#283497 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.4% C 0.161 H 271.1°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#283497
RGB	rgb(40, 52, 151)
HSL	hsl(234, 58%, 37%)
HSV	hsv(234, 74%, 59%)
CMYK	cmyk(73.5%, 65.6%, 0%, 40.8%)
CIE-LAB	lab(27.13, 30.31, -55.57)
CIE-LCH	lch(27.13, 63.30, 298.61°)
OKLab	oklab(38.4% 0.0032 -0.1606)
OKLCH	oklch(38.4% 0.161 271.1)
XYZ	xyz(7.6871, 5.1407, 29.8593)
Luminance	0.0514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283497 #978B28

analogous

#286B97 #283497 #542897

triadic

#283497 #972834 #349728

tetradic

#283497 #97286B #978B28 #289754

square

#283497 #97286B #978B28 #289754

split-complementary

#283497 #975428 #6B9728

monochromatic

#0E1336 #1B2367 #283497 #3545C7 #6470D6

Accessibility & contrast

On white

10.35

#283497 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#283497 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283497

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283497	#FFFFFF	#000000	##FFFFFF
##283497	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459A

Deuteranopia (green-blind)

#003B95

Tritanopia (blue-blind)

#004E60

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #283497;
/* rgb */ color: rgb(40, 52, 151);
/* oklch */ color: oklch(38.4% 0.161 271.1);

Tailwind

colors: {
  custom: {
    50: '#736bb7',
    500: '#283497',
    950: '#000000',
  },
}

SCSS

$custom: #283497;
$custom-light: #736bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#283497",
  "rgb": {
    "r": 40,
    "g": 52,
    "b": 151
  },
  "hsl": {
    "h": 233.514,
    "s": 58.115,
    "l": 37.451
  },
  "oklch": {
    "l": 0.38396,
    "c": 0.16062,
    "h": 271.1
  },
  "luminance": 0.05141
}

Semantic roles & 50–950 ramp

primary

#283497

secondary

#BCB25F

accent

#D146E1

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #283497

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

Preview Lab → · Contrast checker → · Palette generator →