#273AAF#273AAF

#273AAF is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.7% C 0.186 H 269.1°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#273AAF
RGB	rgb(39, 58, 175)
HSL	hsl(232, 64%, 42%)
HSV	hsv(232, 78%, 69%)
CMYK	cmyk(77.7%, 66.9%, 0%, 31.4%)
CIE-LAB	lab(30.76, 35.14, -64.13)
CIE-LCH	lch(30.76, 73.13, 298.72°)
OKLab	oklab(41.72% -0.0031 -0.1856)
OKLCH	oklch(41.72% 0.186 269.1)
XYZ	xyz(10.0850, 6.5515, 41.2822)
Luminance	0.0655 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273AAF #AF9C27

analogous

#277EAF #273AAF #5827AF

triadic

#273AAF #AF273A #3AAF27

tetradic

#273AAF #AF277E #AF9C27 #27AF58

square

#273AAF #AF277E #AF9C27 #27AF58

split-complementary

#273AAF #AF5827 #7EAF27

monochromatic

#11194B #1C297D #273AAF #3F54D4 #7180DF

Accessibility & contrast

On white

9.09

#273AAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#273AAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273AAF

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273AAF	#FFFFFF	#000000	##FFFFFF
##273AAF	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB3

Deuteranopia (green-blind)

#0042AD

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #273aaf;
/* rgb */ color: rgb(39, 58, 175);
/* oklch */ color: oklch(41.7% 0.186 269.1);

Tailwind

colors: {
  custom: {
    50: '#7870c8',
    500: '#273aaf',
    950: '#000000',
  },
}

SCSS

$custom: #273aaf;
$custom-light: #7870c8;
$custom-dark: #000000;

JSON

{
  "hex": "#273aaf",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 175
  },
  "hsl": {
    "h": 231.618,
    "s": 63.551,
    "l": 41.961
  },
  "oklch": {
    "l": 0.41716,
    "c": 0.18563,
    "h": 269.1
  },
  "luminance": 0.06553
}

Semantic roles & 50–950 ramp

primary

#273AAF

secondary

#C6BA6B

accent

#CF41E7

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #273AAF

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

Preview Lab → · Contrast checker → · Palette generator →