#273B79#273B79

#273B79 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.2% C 0.109 H 267.5°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#273B79
RGB	rgb(39, 59, 121)
HSL	hsl(225, 51%, 31%)
HSV	hsv(225, 68%, 47%)
CMYK	cmyk(67.8%, 51.2%, 0%, 52.5%)
CIE-LAB	lab(26.56, 13.97, -37.85)
CIE-LCH	lch(26.56, 40.35, 290.26°)
OKLab	oklab(37.2% -0.0048 -0.1084)
OKLCH	oklch(37.2% 0.109 267.5)
XYZ	xyz(5.8507, 4.9392, 18.7305)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273B79 #796527

analogous

#276479 #273B79 #3C2779

triadic

#273B79 #79273B #3B7927

tetradic

#273B79 #792764 #796527 #27793C

square

#273B79 #792764 #796527 #27793C

split-complementary

#273B79 #793C27 #647927

monochromatic

#090E1C #18244B #273B79 #3652A7 #536FC8

Accessibility & contrast

On white

10.56

#273B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#273B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273B79

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273B79	#FFFFFF	#000000	##FFFFFF
##273B79	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19437B

Deuteranopia (green-blind)

#053B78

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #273b79;
/* rgb */ color: rgb(39, 59, 121);
/* oklch */ color: oklch(37.2% 0.109 267.5);

Tailwind

colors: {
  custom: {
    50: '#6b70a0',
    500: '#273b79',
    950: '#000000',
  },
}

SCSS

$custom: #273b79;
$custom-light: #6b70a0;
$custom-dark: #000000;

JSON

{
  "hex": "#273b79",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 121
  },
  "hsl": {
    "h": 225.366,
    "s": 51.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37195,
    "c": 0.10856,
    "h": 267.5
  },
  "luminance": 0.0494
}

Semantic roles & 50–950 ramp

primary

#273B79

secondary

#AB9551

accent

#B84DDB

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #273B79

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

Preview Lab → · Contrast checker → · Palette generator →