#273E66#273E66

#273E66 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.6% C 0.075 H 260.8°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#273E66
RGB	rgb(39, 62, 102)
HSL	hsl(218, 45%, 28%)
HSV	hsv(218, 62%, 40%)
CMYK	cmyk(61.8%, 39.2%, 0%, 60%)
CIE-LAB	lab(26.26, 4.65, -26.22)
CIE-LCH	lch(26.26, 26.63, 280.05°)
OKLab	oklab(36.57% -0.012 -0.0743)
OKLCH	oklch(36.57% 0.075 260.8)
XYZ	xyz(4.9568, 4.8355, 13.2399)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273E66 #664F27

analogous

#275E66 #273E66 #2F2766

triadic

#273E66 #66273E #3E6627

tetradic

#273E66 #66275E #664F27 #27662F

square

#273E66 #66275E #664F27 #27662F

split-complementary

#273E66 #662F27 #5E6627

monochromatic

#080D16 #16233A #273E66 #385992 #4D75BB

Accessibility & contrast

On white

10.68

#273E66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#273E66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273E66

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273E66	#FFFFFF	#000000	##FFFFFF
##273E66	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4168

Deuteranopia (green-blind)

#253B65

Tritanopia (blue-blind)

#00474D

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #273e66;
/* rgb */ color: rgb(39, 62, 102);
/* oklch */ color: oklch(36.6% 0.075 260.8);

Tailwind

colors: {
  custom: {
    50: '#677392',
    500: '#273e66',
    950: '#000000',
  },
}

SCSS

$custom: #273e66;
$custom-light: #677392;
$custom-dark: #000000;

JSON

{
  "hex": "#273e66",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 102
  },
  "hsl": {
    "h": 218.095,
    "s": 44.681,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3657,
    "c": 0.07524,
    "h": 260.8
  },
  "luminance": 0.04836
}

Semantic roles & 50–950 ramp

primary

#273E66

secondary

#997E50

accent

#A553D4

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #273E66

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

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