#273D66#273D66

#273D66 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.3% C 0.077 H 261.9°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#273D66
RGB	rgb(39, 61, 102)
HSL	hsl(219, 45%, 28%)
HSV	hsv(219, 62%, 40%)
CMYK	cmyk(61.8%, 40.2%, 0%, 60%)
CIE-LAB	lab(25.94, 5.33, -26.72)
CIE-LCH	lch(25.94, 27.25, 281.28°)
OKLab	oklab(36.33% -0.0107 -0.0758)
OKLCH	oklch(36.33% 0.077 261.9)
XYZ	xyz(4.9029, 4.7277, 13.2220)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D66 #665027

analogous

#275C66 #273D66 #312766

triadic

#273D66 #66273D #3D6627

tetradic

#273D66 #66275C #665027 #276631

square

#273D66 #66275C #665027 #276631

split-complementary

#273D66 #663127 #5C6627

monochromatic

#080D16 #16233A #273D66 #385792 #4D73BB

Accessibility & contrast

On white

10.79

#273D66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#273D66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D66

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D66	#FFFFFF	#000000	##FFFFFF
##273D66	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4168

Deuteranopia (green-blind)

#243B65

Tritanopia (blue-blind)

#00464C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #273d66;
/* rgb */ color: rgb(39, 61, 102);
/* oklch */ color: oklch(36.3% 0.077 261.9);

Tailwind

colors: {
  custom: {
    50: '#677292',
    500: '#273d66',
    950: '#000000',
  },
}

SCSS

$custom: #273d66;
$custom-light: #677292;
$custom-dark: #000000;

JSON

{
  "hex": "#273d66",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 102
  },
  "hsl": {
    "h": 219.048,
    "s": 44.681,
    "l": 27.647
  },
  "oklch": {
    "l": 0.36325,
    "c": 0.07652,
    "h": 261.9
  },
  "luminance": 0.04728
}

Semantic roles & 50–950 ramp

primary

#273D66

secondary

#997F50

accent

#A753D4

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #273D66

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

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