#273791#273791

#273791 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.4% C 0.149 H 270.1°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#273791
RGB	rgb(39, 55, 145)
HSL	hsl(231, 58%, 36%)
HSV	hsv(231, 73%, 57%)
CMYK	cmyk(73.1%, 62.1%, 0%, 43.1%)
CIE-LAB	lab(27.32, 25.94, -51.59)
CIE-LCH	lch(27.32, 57.74, 296.69°)
OKLab	oklab(38.35% 0.0002 -0.1489)
OKLCH	oklch(38.35% 0.149 270.1)
XYZ	xyz(7.3120, 5.2073, 27.4023)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273791 #918127

analogous

#276C91 #273791 #4C2791

triadic

#273791 #912737 #379127

tetradic

#273791 #91276C #918127 #27914C

square

#273791 #91276C #918127 #27914C

split-complementary

#273791 #914C27 #6C9127

monochromatic

#0D1231 #1A2561 #273791 #3449C1 #5F70D4

Accessibility & contrast

On white

10.29

#273791 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#273791 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273791

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273791	#FFFFFF	#000000	##FFFFFF
##273791	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004694

Deuteranopia (green-blind)

#003C8F

Tritanopia (blue-blind)

#004E5E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #273791;
/* rgb */ color: rgb(39, 55, 145);
/* oklch */ color: oklch(38.4% 0.149 270.1);

Tailwind

colors: {
  custom: {
    50: '#716db2',
    500: '#273791',
    950: '#000000',
  },
}

SCSS

$custom: #273791;
$custom-light: #716db2;
$custom-dark: #000000;

JSON

{
  "hex": "#273791",
  "rgb": {
    "r": 39,
    "g": 55,
    "b": 145
  },
  "hsl": {
    "h": 230.943,
    "s": 57.609,
    "l": 36.078
  },
  "oklch": {
    "l": 0.38354,
    "c": 0.1489,
    "h": 270.1
  },
  "luminance": 0.05208
}

Semantic roles & 50–950 ramp

primary

#273791

secondary

#B9AB5B

accent

#CA47E1

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #273791

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

Preview Lab → · Contrast checker → · Palette generator →