#273D75#273D75

#273D75 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.4% C 0.100 H 265.7°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#273D75
RGB	rgb(39, 61, 117)
HSL	hsl(223, 50%, 31%)
HSV	hsv(223, 67%, 46%)
CMYK	cmyk(66.7%, 47.9%, 0%, 54.1%)
CIE-LAB	lab(26.88, 11.04, -34.80)
CIE-LCH	lch(26.88, 36.51, 287.60°)
OKLab	oklab(37.35% -0.0075 -0.0995)
OKLCH	oklch(37.35% 0.1 265.7)
XYZ	xyz(5.7152, 5.0527, 17.5002)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D75 #755F27

analogous

#276475 #273D75 #382775

triadic

#273D75 #75273D #3D7527

tetradic

#273D75 #752764 #755F27 #277538

square

#273D75 #752764 #755F27 #277538

split-complementary

#273D75 #753827 #647527

monochromatic

#080D19 #182547 #273D75 #3655A3 #5172C5

Accessibility & contrast

On white

10.44

#273D75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#273D75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D75

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D75	#FFFFFF	#000000	##FFFFFF
##273D75	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224377

Deuteranopia (green-blind)

#143C74

Tritanopia (blue-blind)

#004A53

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #273d75;
/* rgb */ color: rgb(39, 61, 117);
/* oklch */ color: oklch(37.4% 0.100 265.7);

Tailwind

colors: {
  custom: {
    50: '#6a729d',
    500: '#273d75',
    950: '#000000',
  },
}

SCSS

$custom: #273d75;
$custom-light: #6a729d;
$custom-dark: #000000;

JSON

{
  "hex": "#273d75",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 117
  },
  "hsl": {
    "h": 223.077,
    "s": 50,
    "l": 30.588
  },
  "oklch": {
    "l": 0.37354,
    "c": 0.09974,
    "h": 265.7
  },
  "luminance": 0.05053
}

Semantic roles & 50–950 ramp

primary

#273D75

secondary

#A78F51

accent

#B24EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #273D75

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

Preview Lab → · Contrast checker → · Palette generator →