#273F79#273F79

#273F79 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.1% C 0.103 H 265.0°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#273F79
RGB	rgb(39, 63, 121)
HSL	hsl(222, 51%, 31%)
HSV	hsv(222, 68%, 47%)
CMYK	cmyk(67.8%, 47.9%, 0%, 52.5%)
CIE-LAB	lab(27.75, 11.20, -35.93)
CIE-LCH	lch(27.75, 37.64, 287.31°)
OKLab	oklab(38.11% -0.009 -0.1027)
OKLCH	oklch(38.11% 0.103 265)
XYZ	xyz(6.0642, 5.3663, 18.8017)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273F79 #796127

analogous

#276879 #273F79 #382779

triadic

#273F79 #79273F #3F7927

tetradic

#273F79 #792768 #796127 #277938

square

#273F79 #792768 #796127 #277938

split-complementary

#273F79 #793827 #687927

monochromatic

#090F1C #18274B #273F79 #3657A7 #5375C8

Accessibility & contrast

On white

10.13

#273F79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#273F79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273F79

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273F79	#FFFFFF	#000000	##FFFFFF
##273F79	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22467B

Deuteranopia (green-blind)

#133E78

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #273f79;
/* rgb */ color: rgb(39, 63, 121);
/* oklch */ color: oklch(38.1% 0.103 265.0);

Tailwind

colors: {
  custom: {
    50: '#6b73a0',
    500: '#273f79',
    950: '#000000',
  },
}

SCSS

$custom: #273f79;
$custom-light: #6b73a0;
$custom-dark: #000000;

JSON

{
  "hex": "#273f79",
  "rgb": {
    "r": 39,
    "g": 63,
    "b": 121
  },
  "hsl": {
    "h": 222.439,
    "s": 51.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.38106,
    "c": 0.10314,
    "h": 265
  },
  "luminance": 0.05367
}

Semantic roles & 50–950 ramp

primary

#273F79

secondary

#AB9151

accent

#B14DDB

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #273F79

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

Preview Lab → · Contrast checker → · Palette generator →