#273E79#273E79

#273E79 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.9% C 0.104 H 265.6°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#273E79
RGB	rgb(39, 62, 121)
HSL	hsl(223, 51%, 31%)
HSV	hsv(223, 68%, 47%)
CMYK	cmyk(67.8%, 48.8%, 0%, 52.5%)
CIE-LAB	lab(27.45, 11.89, -36.42)
CIE-LCH	lch(27.45, 38.31, 288.08°)
OKLab	oklab(37.88% -0.0079 -0.1042)
OKLCH	oklch(37.88% 0.104 265.6)
XYZ	xyz(6.0093, 5.2565, 18.7834)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273E79 #796227

analogous

#276779 #273E79 #392779

triadic

#273E79 #79273E #3E7927

tetradic

#273E79 #792767 #796227 #277939

square

#273E79 #792767 #796227 #277939

split-complementary

#273E79 #793927 #677927

monochromatic

#090F1C #18264B #273E79 #3656A7 #5374C8

Accessibility & contrast

On white

10.24

#273E79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#273E79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273E79

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273E79	#FFFFFF	#000000	##FFFFFF
##273E79	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20457B

Deuteranopia (green-blind)

#103D78

Tritanopia (blue-blind)

#004C55

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #273e79;
/* rgb */ color: rgb(39, 62, 121);
/* oklch */ color: oklch(37.9% 0.104 265.6);

Tailwind

colors: {
  custom: {
    50: '#6b72a0',
    500: '#273e79',
    950: '#000000',
  },
}

SCSS

$custom: #273e79;
$custom-light: #6b72a0;
$custom-dark: #000000;

JSON

{
  "hex": "#273e79",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 121
  },
  "hsl": {
    "h": 223.171,
    "s": 51.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37876,
    "c": 0.10449,
    "h": 265.6
  },
  "luminance": 0.05257
}

Semantic roles & 50–950 ramp

primary

#273E79

secondary

#AB9251

accent

#B34DDB

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #273E79

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

Preview Lab → · Contrast checker → · Palette generator →