#273783#273783

#273783 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.1% C 0.129 H 270.0°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#273783
RGB	rgb(39, 55, 131)
HSL	hsl(230, 54%, 33%)
HSV	hsv(230, 70%, 51%)
CMYK	cmyk(70.2%, 58%, 0%, 48.6%)
CIE-LAB	lab(26.16, 20.60, -44.78)
CIE-LCH	lch(26.16, 49.29, 294.70°)
OKLab	oklab(37.13% 0 -0.1289)
OKLCH	oklch(37.13% 0.129 270)
XYZ	xyz(6.2982, 4.8018, 22.0633)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273783 #837327

analogous

#276583 #273783 #452783

triadic

#273783 #832737 #378327

tetradic

#273783 #832765 #837327 #278345

square

#273783 #832765 #837327 #278345

split-complementary

#273783 #834527 #658327

monochromatic

#0B0F25 #192354 #273783 #354BB2 #576CCD

Accessibility & contrast

On white

10.71

#273783 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#273783 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273783

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273783	#FFFFFF	#000000	##FFFFFF
##273783	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004286

Deuteranopia (green-blind)

#003A81

Tritanopia (blue-blind)

#004957

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #273783;
/* rgb */ color: rgb(39, 55, 131);
/* oklch */ color: oklch(37.1% 0.129 270.0);

Tailwind

colors: {
  custom: {
    50: '#6d6da8',
    500: '#273783',
    950: '#000000',
  },
}

SCSS

$custom: #273783;
$custom-light: #6d6da8;
$custom-dark: #000000;

JSON

{
  "hex": "#273783",
  "rgb": {
    "r": 39,
    "g": 55,
    "b": 131
  },
  "hsl": {
    "h": 229.565,
    "s": 54.118,
    "l": 33.333
  },
  "oklch": {
    "l": 0.37132,
    "c": 0.12889,
    "h": 270
  },
  "luminance": 0.04802
}

Semantic roles & 50–950 ramp

primary

#273783

secondary

#B2A254

accent

#C44ADD

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #273783

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

Preview Lab → · Contrast checker → · Palette generator →