#273A66#273A66

#273A66 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.6% C 0.080 H 265.0°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#273A66
RGB	rgb(39, 58, 102)
HSL	hsl(222, 45%, 28%)
HSV	hsv(222, 62%, 40%)
CMYK	cmyk(61.8%, 43.1%, 0%, 60%)
CIE-LAB	lab(25.00, 7.40, -28.22)
CIE-LCH	lch(25.00, 29.17, 284.69°)
OKLab	oklab(35.6% -0.007 -0.0802)
OKLCH	oklch(35.6% 0.08 265)
XYZ	xyz(4.7472, 4.4164, 13.1701)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A66 #665327

analogous

#275966 #273A66 #342766

triadic

#273A66 #66273A #3A6627

tetradic

#273A66 #662759 #665327 #276634

square

#273A66 #662759 #665327 #276634

split-complementary

#273A66 #663427 #596627

monochromatic

#080D16 #16213A #273A66 #385392 #4D6EBB

Accessibility & contrast

On white

11.15

#273A66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#273A66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A66

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A66	#FFFFFF	#000000	##FFFFFF
##273A66	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273E68

Deuteranopia (green-blind)

#1F3965

Tritanopia (blue-blind)

#00444B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #273a66;
/* rgb */ color: rgb(39, 58, 102);
/* oklch */ color: oklch(35.6% 0.080 265.0);

Tailwind

colors: {
  custom: {
    50: '#676f92',
    500: '#273a66',
    950: '#000000',
  },
}

SCSS

$custom: #273a66;
$custom-light: #676f92;
$custom-dark: #000000;

JSON

{
  "hex": "#273a66",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 102
  },
  "hsl": {
    "h": 221.905,
    "s": 44.681,
    "l": 27.647
  },
  "oklch": {
    "l": 0.35597,
    "c": 0.08047,
    "h": 265
  },
  "luminance": 0.04417
}

Semantic roles & 50–950 ramp

primary

#273A66

secondary

#998350

accent

#AD53D4

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #273A66

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

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