#273E88#273E88

#273E88 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.0% C 0.127 H 267.3°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#273E88
RGB	rgb(39, 62, 136)
HSL	hsl(226, 55%, 34%)
HSV	hsv(226, 71%, 53%)
CMYK	cmyk(71.3%, 54.4%, 0%, 46.7%)
CIE-LAB	lab(28.52, 17.70, -44.07)
CIE-LCH	lch(28.52, 47.49, 291.88°)
OKLab	oklab(39.03% -0.0061 -0.1267)
OKLCH	oklch(39.03% 0.127 267.3)
XYZ	xyz(7.0017, 5.6535, 24.0100)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273E88 #887127

analogous

#276F88 #273E88 #412788

triadic

#273E88 #88273E #3E8827

tetradic

#273E88 #88276F #887127 #278841

square

#273E88 #88276F #887127 #278841

split-complementary

#273E88 #884127 #6F8827

monochromatic

#0C1329 #192858 #273E88 #3554B8 #5A76D0

Accessibility & contrast

On white

9.86

#273E88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#273E88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273E88

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273E88	#FFFFFF	#000000	##FFFFFF
##273E88	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B488B

Deuteranopia (green-blind)

#003F87

Tritanopia (blue-blind)

#00505C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #273e88;
/* rgb */ color: rgb(39, 62, 136);
/* oklch */ color: oklch(39.0% 0.127 267.3);

Tailwind

colors: {
  custom: {
    50: '#6e72ab',
    500: '#273e88',
    950: '#000000',
  },
}

SCSS

$custom: #273e88;
$custom-light: #6e72ab;
$custom-dark: #000000;

JSON

{
  "hex": "#273e88",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 136
  },
  "hsl": {
    "h": 225.773,
    "s": 55.429,
    "l": 34.314
  },
  "oklch": {
    "l": 0.39029,
    "c": 0.12685,
    "h": 267.3
  },
  "luminance": 0.05654
}

Semantic roles & 50–950 ramp

primary

#273E88

secondary

#B59E56

accent

#BB49DF

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #273E88

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

Preview Lab → · Contrast checker → · Palette generator →