#273D83#273D83

#273D83 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.4% C 0.121 H 267.3°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#273D83
RGB	rgb(39, 61, 131)
HSL	hsl(226, 54%, 33%)
HSV	hsv(226, 70%, 51%)
CMYK	cmyk(70.2%, 53.4%, 0%, 48.6%)
CIE-LAB	lab(27.86, 16.45, -42.02)
CIE-LCH	lch(27.86, 45.13, 291.38°)
OKLab	oklab(38.41% -0.0056 -0.1207)
OKLCH	oklch(38.41% 0.121 267.3)
XYZ	xyz(6.6008, 5.4069, 22.1641)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D83 #836D27

analogous

#276B83 #273D83 #3F2783

triadic

#273D83 #83273D #3D8327

tetradic

#273D83 #83276B #836D27 #27833F

square

#273D83 #83276B #836D27 #27833F

split-complementary

#273D83 #833F27 #6B8327

monochromatic

#0B1125 #192754 #273D83 #3553B2 #5773CD

Accessibility & contrast

On white

10.09

#273D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#273D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D83

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D83	#FFFFFF	#000000	##FFFFFF
##273D83	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#114685

Deuteranopia (green-blind)

#003E82

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #273d83;
/* rgb */ color: rgb(39, 61, 131);
/* oklch */ color: oklch(38.4% 0.121 267.3);

Tailwind

colors: {
  custom: {
    50: '#6d72a8',
    500: '#273d83',
    950: '#000000',
  },
}

SCSS

$custom: #273d83;
$custom-light: #6d72a8;
$custom-dark: #000000;

JSON

{
  "hex": "#273d83",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 131
  },
  "hsl": {
    "h": 225.652,
    "s": 54.118,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38414,
    "c": 0.12083,
    "h": 267.3
  },
  "luminance": 0.05408
}

Semantic roles & 50–950 ramp

primary

#273D83

secondary

#B29B54

accent

#BA4ADD

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #273D83

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

Preview Lab → · Contrast checker → · Palette generator →