#273A73#273A73

#273A73 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.101 H 267.4°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#273A73
RGB	rgb(39, 58, 115)
HSL	hsl(225, 49%, 30%)
HSV	hsv(225, 66%, 45%)
CMYK	cmyk(66.1%, 49.6%, 0%, 54.9%)
CIE-LAB	lab(25.85, 12.35, -35.20)
CIE-LCH	lch(25.85, 37.30, 289.34°)
OKLab	oklab(36.52% -0.0046 -0.1007)
OKLCH	oklch(36.52% 0.101 267.4)
XYZ	xyz(5.4432, 4.6948, 16.8357)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A73 #736027

analogous

#276073 #273A73 #3A2773

triadic

#273A73 #73273A #3A7327

tetradic

#273A73 #732760 #736027 #27733A

square

#273A73 #732760 #736027 #27733A

split-complementary

#273A73 #733A27 #607327

monochromatic

#080C18 #182345 #273A73 #3651A1 #516DC4

Accessibility & contrast

On white

10.83

#273A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#273A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A73

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A73	#FFFFFF	#000000	##FFFFFF
##273A73	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4175

Deuteranopia (green-blind)

#0F3A72

Tritanopia (blue-blind)

#004751

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #273a73;
/* rgb */ color: rgb(39, 58, 115);
/* oklch */ color: oklch(36.5% 0.101 267.4);

Tailwind

colors: {
  custom: {
    50: '#6a6f9c',
    500: '#273a73',
    950: '#000000',
  },
}

SCSS

$custom: #273a73;
$custom-light: #6a6f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#273a73",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 115
  },
  "hsl": {
    "h": 225,
    "s": 49.351,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36517,
    "c": 0.10076,
    "h": 267.4
  },
  "luminance": 0.04695
}

Semantic roles & 50–950 ramp

primary

#273A73

secondary

#A59050

accent

#B64FD9

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #273A73

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

Preview Lab → · Contrast checker → · Palette generator →