#273587#273587

#273587 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.1% C 0.137 H 270.8°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#273587
RGB	rgb(39, 53, 135)
HSL	hsl(231, 55%, 34%)
HSV	hsv(231, 71%, 53%)
CMYK	cmyk(71.1%, 60.7%, 0%, 47.1%)
CIE-LAB	lab(25.94, 23.50, -47.64)
CIE-LCH	lch(25.94, 53.12, 296.26°)
OKLab	oklab(37.07% 0.0018 -0.1373)
OKLCH	oklch(37.07% 0.137 270.8)
XYZ	xyz(6.4815, 4.7262, 23.4876)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273587 #877927

analogous

#276587 #273587 #492787

triadic

#273587 #872735 #358727

tetradic

#273587 #872765 #877927 #278749

square

#273587 #872765 #877927 #278749

split-complementary

#273587 #874927 #658727

monochromatic

#0C1028 #192258 #273587 #3548B6 #596ACF

Accessibility & contrast

On white

10.79

#273587 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#273587 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273587

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273587	#FFFFFF	#000000	##FFFFFF
##273587	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428A

Deuteranopia (green-blind)

#003985

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #273587;
/* rgb */ color: rgb(39, 53, 135);
/* oklch */ color: oklch(37.1% 0.137 270.8);

Tailwind

colors: {
  custom: {
    50: '#6e6cab',
    500: '#273587',
    950: '#000000',
  },
}

SCSS

$custom: #273587;
$custom-light: #6e6cab;
$custom-dark: #000000;

JSON

{
  "hex": "#273587",
  "rgb": {
    "r": 39,
    "g": 53,
    "b": 135
  },
  "hsl": {
    "h": 231.25,
    "s": 55.172,
    "l": 34.118
  },
  "oklch": {
    "l": 0.37069,
    "c": 0.13733,
    "h": 270.8
  },
  "luminance": 0.04727
}

Semantic roles & 50–950 ramp

primary

#273587

secondary

#B4A656

accent

#C949DF

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #273587

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

Preview Lab → · Contrast checker → · Palette generator →