#273399#273399

#273399 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.4% C 0.165 H 270.9°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#273399
RGB	rgb(39, 51, 153)
HSL	hsl(234, 59%, 38%)
HSV	hsv(234, 75%, 60%)
CMYK	cmyk(74.5%, 66.7%, 0%, 40%)
CIE-LAB	lab(27.01, 31.59, -56.99)
CIE-LCH	lch(27.01, 65.16, 299.00°)
OKLab	oklab(38.35% 0.0027 -0.1648)
OKLCH	oklch(38.35% 0.165 270.9)
XYZ	xyz(7.7683, 5.0981, 30.7054)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273399 #998D27

analogous

#276C99 #273399 #542799

triadic

#273399 #992733 #339927

tetradic

#273399 #99276C #998D27 #279954

square

#273399 #99276C #998D27 #279954

split-complementary

#273399 #995427 #6C9927

monochromatic

#0E1237 #1B2368 #273399 #3343CA #636FD7

Accessibility & contrast

On white

10.40

#273399 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#273399 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273399

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273399	#FFFFFF	#000000	##FFFFFF
##273399	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459C

Deuteranopia (green-blind)

#003B97

Tritanopia (blue-blind)

#004E61

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #273399;
/* rgb */ color: rgb(39, 51, 153);
/* oklch */ color: oklch(38.4% 0.165 270.9);

Tailwind

colors: {
  custom: {
    50: '#736bb8',
    500: '#273399',
    950: '#000000',
  },
}

SCSS

$custom: #273399;
$custom-light: #736bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#273399",
  "rgb": {
    "r": 39,
    "g": 51,
    "b": 153
  },
  "hsl": {
    "h": 233.684,
    "s": 59.375,
    "l": 37.647
  },
  "oklch": {
    "l": 0.3835,
    "c": 0.1648,
    "h": 270.9
  },
  "luminance": 0.05099
}

Semantic roles & 50–950 ramp

primary

#273399

secondary

#BDB35F

accent

#D245E3

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #273399

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

Preview Lab → · Contrast checker → · Palette generator →