#273F89#273F89

#273F89 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.3% C 0.127 H 266.9°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#273F89
RGB	rgb(39, 63, 137)
HSL	hsl(225, 56%, 35%)
HSV	hsv(225, 72%, 54%)
CMYK	cmyk(71.5%, 54%, 0%, 46.3%)
CIE-LAB	lab(28.88, 17.40, -44.11)
CIE-LCH	lch(28.88, 47.41, 291.53°)
OKLab	oklab(39.32% -0.0069 -0.1268)
OKLCH	oklch(39.32% 0.127 266.9)
XYZ	xyz(7.1280, 5.7918, 24.4043)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273F89 #897127

analogous

#277089 #273F89 #402789

triadic

#273F89 #89273F #3F8927

tetradic

#273F89 #892770 #897127 #278940

square

#273F89 #892770 #897127 #278940

split-complementary

#273F89 #894027 #708927

monochromatic

#0C132A #192959 #273F89 #3555B9 #5A77D0

Accessibility & contrast

On white

9.73

#273F89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#273F89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273F89

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273F89	#FFFFFF	#000000	##FFFFFF
##273F89	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D498C

Deuteranopia (green-blind)

#004088

Tritanopia (blue-blind)

#00515D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #273f89;
/* rgb */ color: rgb(39, 63, 137);
/* oklch */ color: oklch(39.3% 0.127 266.9);

Tailwind

colors: {
  custom: {
    50: '#6e73ac',
    500: '#273f89',
    950: '#000000',
  },
}

SCSS

$custom: #273f89;
$custom-light: #6e73ac;
$custom-dark: #000000;

JSON

{
  "hex": "#273f89",
  "rgb": {
    "r": 39,
    "g": 63,
    "b": 137
  },
  "hsl": {
    "h": 225.306,
    "s": 55.682,
    "l": 34.51
  },
  "oklch": {
    "l": 0.39325,
    "c": 0.12699,
    "h": 266.9
  },
  "luminance": 0.05792
}

Semantic roles & 50–950 ramp

primary

#273F89

secondary

#B59E57

accent

#BA49DF

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #273F89

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

Preview Lab → · Contrast checker → · Palette generator →