#273F85#273F85

#273F85 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.0% C 0.121 H 266.5°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#273F85
RGB	rgb(39, 63, 133)
HSL	hsl(225, 55%, 34%)
HSV	hsv(225, 71%, 52%)
CMYK	cmyk(70.7%, 52.6%, 0%, 47.8%)
CIE-LAB	lab(28.59, 15.85, -42.10)
CIE-LCH	lch(28.59, 44.98, 290.63°)
OKLab	oklab(39.01% -0.0073 -0.1209)
OKLCH	oklch(39.01% 0.121 266.5)
XYZ	xyz(6.8464, 5.6791, 22.9211)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273F85 #856D27

analogous

#276E85 #273F85 #3E2785

triadic

#273F85 #85273F #3F8527

tetradic

#273F85 #85276E #856D27 #27853E

square

#273F85 #85276E #856D27 #27853E

split-complementary

#273F85 #853E27 #6E8527

monochromatic

#0B1226 #192956 #273F85 #3555B4 #5876CE

Accessibility & contrast

On white

9.83

#273F85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#273F85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273F85

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273F85	#FFFFFF	#000000	##FFFFFF
##273F85	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154888

Deuteranopia (green-blind)

#003F84

Tritanopia (blue-blind)

#00505B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #273f85;
/* rgb */ color: rgb(39, 63, 133);
/* oklch */ color: oklch(39.0% 0.121 266.5);

Tailwind

colors: {
  custom: {
    50: '#6d73a9',
    500: '#273f85',
    950: '#000000',
  },
}

SCSS

$custom: #273f85;
$custom-light: #6d73a9;
$custom-dark: #000000;

JSON

{
  "hex": "#273f85",
  "rgb": {
    "r": 39,
    "g": 63,
    "b": 133
  },
  "hsl": {
    "h": 224.681,
    "s": 54.651,
    "l": 33.725
  },
  "oklch": {
    "l": 0.3901,
    "c": 0.12111,
    "h": 266.5
  },
  "luminance": 0.0568
}

Semantic roles & 50–950 ramp

primary

#273F85

secondary

#B39B55

accent

#B84ADE

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #273F85

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

Preview Lab → · Contrast checker → · Palette generator →