#273D89#273D89

#273D89 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.9% C 0.130 H 267.8°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#273D89
RGB	rgb(39, 61, 137)
HSL	hsl(227, 56%, 35%)
HSV	hsv(227, 72%, 54%)
CMYK	cmyk(71.5%, 55.5%, 0%, 46.3%)
CIE-LAB	lab(28.31, 18.77, -45.03)
CIE-LCH	lch(28.31, 48.78, 292.63°)
OKLab	oklab(38.9% -0.0051 -0.1295)
OKLCH	oklch(38.9% 0.13 267.8)
XYZ	xyz(7.0192, 5.5743, 24.3681)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D89 #897327

analogous

#276E89 #273D89 #422789

triadic

#273D89 #89273D #3D8927

tetradic

#273D89 #89276E #897327 #278942

square

#273D89 #89276E #897327 #278942

split-complementary

#273D89 #894227 #6E8927

monochromatic

#0C132A #192859 #273D89 #3552B9 #5A75D0

Accessibility & contrast

On white

9.93

#273D89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#273D89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D89

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D89	#FFFFFF	#000000	##FFFFFF
##273D89	1.00	9.93	2.12	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03478C

Deuteranopia (green-blind)

#003E87

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #273d89;
/* rgb */ color: rgb(39, 61, 137);
/* oklch */ color: oklch(38.9% 0.130 267.8);

Tailwind

colors: {
  custom: {
    50: '#6e72ac',
    500: '#273d89',
    950: '#000000',
  },
}

SCSS

$custom: #273d89;
$custom-light: #6e72ac;
$custom-dark: #000000;

JSON

{
  "hex": "#273d89",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 137
  },
  "hsl": {
    "h": 226.531,
    "s": 55.682,
    "l": 34.51
  },
  "oklch": {
    "l": 0.38895,
    "c": 0.12964,
    "h": 267.8
  },
  "luminance": 0.05575
}

Semantic roles & 50–950 ramp

primary

#273D89

secondary

#B5A057

accent

#BD49DF

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #273D89

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

Preview Lab → · Contrast checker → · Palette generator →