#273CAE#273CAE

#273CAE is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.0% C 0.182 H 268.7°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#273CAE
RGB	rgb(39, 60, 174)
HSL	hsl(231, 63%, 42%)
HSV	hsv(231, 78%, 68%)
CMYK	cmyk(77.6%, 65.5%, 0%, 31.8%)
CIE-LAB	lab(31.16, 33.49, -62.89)
CIE-LCH	lch(31.16, 71.25, 298.04°)
OKLab	oklab(41.98% -0.0041 -0.182)
OKLCH	oklch(41.98% 0.182 268.7)
XYZ	xyz(10.0899, 6.7179, 40.8011)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273CAE #AE9927

analogous

#2780AE #273CAE #5627AE

triadic

#273CAE #AE273C #3CAE27

tetradic

#273CAE #AE2780 #AE9927 #27AE56

square

#273CAE #AE2780 #AE9927 #27AE56

split-complementary

#273CAE #AE5627 #80AE27

monochromatic

#111A4A #1C2B7C #273CAE #3E56D4 #7082DF

Accessibility & contrast

On white

8.96

#273CAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#273CAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273CAE

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273CAE	#FFFFFF	#000000	##FFFFFF
##273CAE	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B2

Deuteranopia (green-blind)

#0043AC

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #273cae;
/* rgb */ color: rgb(39, 60, 174);
/* oklch */ color: oklch(42.0% 0.182 268.7);

Tailwind

colors: {
  custom: {
    50: '#7771c7',
    500: '#273cae',
    950: '#000000',
  },
}

SCSS

$custom: #273cae;
$custom-light: #7771c7;
$custom-dark: #000000;

JSON

{
  "hex": "#273cae",
  "rgb": {
    "r": 39,
    "g": 60,
    "b": 174
  },
  "hsl": {
    "h": 230.667,
    "s": 63.38,
    "l": 41.765
  },
  "oklch": {
    "l": 0.41975,
    "c": 0.18201,
    "h": 268.7
  },
  "luminance": 0.06719
}

Semantic roles & 50–950 ramp

primary

#273CAE

secondary

#C6B86B

accent

#CD41E6

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #273CAE

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

Preview Lab → · Contrast checker → · Palette generator →