#273688#273688

#273688 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.4% C 0.137 H 270.4°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#273688
RGB	rgb(39, 54, 136)
HSL	hsl(231, 55%, 34%)
HSV	hsv(231, 71%, 53%)
CMYK	cmyk(71.3%, 60.3%, 0%, 46.7%)
CIE-LAB	lab(26.29, 23.20, -47.68)
CIE-LCH	lch(26.29, 53.03, 295.94°)
OKLab	oklab(37.36% 0.001 -0.1374)
OKLCH	oklch(37.36% 0.137 270.4)
XYZ	xyz(6.5983, 4.8466, 23.8755)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273688 #887927

analogous

#276788 #273688 #492788

triadic

#273688 #882736 #368827

tetradic

#273688 #882767 #887927 #278849

square

#273688 #882767 #887927 #278849

split-complementary

#273688 #884927 #678827

monochromatic

#0C1029 #192358 #273688 #3549B8 #5A6CD0

Accessibility & contrast

On white

10.66

#273688 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#273688 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273688

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273688	#FFFFFF	#000000	##FFFFFF
##273688	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438B

Deuteranopia (green-blind)

#003A86

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #273688;
/* rgb */ color: rgb(39, 54, 136);
/* oklch */ color: oklch(37.4% 0.137 270.4);

Tailwind

colors: {
  custom: {
    50: '#6f6cab',
    500: '#273688',
    950: '#000000',
  },
}

SCSS

$custom: #273688;
$custom-light: #6f6cab;
$custom-dark: #000000;

JSON

{
  "hex": "#273688",
  "rgb": {
    "r": 39,
    "g": 54,
    "b": 136
  },
  "hsl": {
    "h": 230.722,
    "s": 55.429,
    "l": 34.314
  },
  "oklch": {
    "l": 0.37357,
    "c": 0.13745,
    "h": 270.4
  },
  "luminance": 0.04847
}

Semantic roles & 50–950 ramp

primary

#273688

secondary

#B5A656

accent

#C849DF

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #273688

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

Preview Lab → · Contrast checker → · Palette generator →