#273B73#273B73

#273B73 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.099 H 266.7°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#273B73
RGB	rgb(39, 59, 115)
HSL	hsl(224, 49%, 30%)
HSV	hsv(224, 66%, 45%)
CMYK	cmyk(66.1%, 48.7%, 0%, 54.9%)
CIE-LAB	lab(26.15, 11.66, -34.71)
CIE-LCH	lch(26.15, 36.62, 288.56°)
OKLab	oklab(36.75% -0.0057 -0.0992)
OKLCH	oklch(36.75% 0.099 266.7)
XYZ	xyz(5.4941, 4.7966, 16.8526)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273B73 #735F27

analogous

#276173 #273B73 #392773

triadic

#273B73 #73273B #3B7327

tetradic

#273B73 #732761 #735F27 #277339

square

#273B73 #732761 #735F27 #277339

split-complementary

#273B73 #733927 #617327

monochromatic

#080C18 #182445 #273B73 #3652A1 #516FC4

Accessibility & contrast

On white

10.72

#273B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#273B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273B73

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273B73	#FFFFFF	#000000	##FFFFFF
##273B73	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4275

Deuteranopia (green-blind)

#123B72

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #273b73;
/* rgb */ color: rgb(39, 59, 115);
/* oklch */ color: oklch(36.7% 0.099 266.7);

Tailwind

colors: {
  custom: {
    50: '#6a709c',
    500: '#273b73',
    950: '#000000',
  },
}

SCSS

$custom: #273b73;
$custom-light: #6a709c;
$custom-dark: #000000;

JSON

{
  "hex": "#273b73",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 115
  },
  "hsl": {
    "h": 224.211,
    "s": 49.351,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36747,
    "c": 0.09939,
    "h": 266.7
  },
  "luminance": 0.04797
}

Semantic roles & 50–950 ramp

primary

#273B73

secondary

#A58F50

accent

#B54FD9

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #273B73

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

Preview Lab → · Contrast checker → · Palette generator →