#273D87#273D87

#273D87 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.7% C 0.127 H 267.6°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#273D87
RGB	rgb(39, 61, 135)
HSL	hsl(226, 55%, 34%)
HSV	hsv(226, 71%, 53%)
CMYK	cmyk(71.1%, 54.8%, 0%, 47.1%)
CIE-LAB	lab(28.16, 18.00, -44.03)
CIE-LCH	lch(28.16, 47.57, 292.24°)
OKLab	oklab(38.73% -0.0052 -0.1266)
OKLCH	oklch(38.73% 0.127 267.6)
XYZ	xyz(6.8771, 5.5174, 23.6195)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D87 #877127

analogous

#276D87 #273D87 #412787

triadic

#273D87 #87273D #3D8727

tetradic

#273D87 #87276D #877127 #278741

square

#273D87 #87276D #877127 #278741

split-complementary

#273D87 #874127 #6D8727

monochromatic

#0C1228 #192858 #273D87 #3552B6 #5974CF

Accessibility & contrast

On white

9.98

#273D87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#273D87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D87

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D87	#FFFFFF	#000000	##FFFFFF
##273D87	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08478A

Deuteranopia (green-blind)

#003E86

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #273d87;
/* rgb */ color: rgb(39, 61, 135);
/* oklch */ color: oklch(38.7% 0.127 267.6);

Tailwind

colors: {
  custom: {
    50: '#6e72aa',
    500: '#273d87',
    950: '#000000',
  },
}

SCSS

$custom: #273d87;
$custom-light: #6e72aa;
$custom-dark: #000000;

JSON

{
  "hex": "#273d87",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 135
  },
  "hsl": {
    "h": 226.25,
    "s": 55.172,
    "l": 34.118
  },
  "oklch": {
    "l": 0.38733,
    "c": 0.12672,
    "h": 267.6
  },
  "luminance": 0.05518
}

Semantic roles & 50–950 ramp

primary

#273D87

secondary

#B49E56

accent

#BC49DF

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #273D87

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

Preview Lab → · Contrast checker → · Palette generator →