#273CAA#273CAA

#273CAA is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.6% C 0.177 H 268.7°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#273CAA
RGB	rgb(39, 60, 170)
HSL	hsl(230, 63%, 41%)
HSV	hsv(230, 77%, 67%)
CMYK	cmyk(77.1%, 64.7%, 0%, 33.3%)
CIE-LAB	lab(30.79, 32.01, -61.09)
CIE-LCH	lch(30.79, 68.96, 297.65°)
OKLab	oklab(41.6% -0.004 -0.1767)
OKLCH	oklch(41.6% 0.177 268.7)
XYZ	xyz(9.7058, 6.5643, 38.7779)
Luminance	0.0657 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273CAA #AA9527

analogous

#277DAA #273CAA #5427AA

triadic

#273CAA #AA273C #3CAA27

tetradic

#273CAA #AA277D #AA9527 #27AA54

square

#273CAA #AA277D #AA9527 #27AA54

split-complementary

#273CAA #AA5427 #7DAA27

monochromatic

#101946 #1C2A78 #273CAA #3C54D2 #6E80DE

Accessibility & contrast

On white

9.08

#273CAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#273CAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273CAA

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273CAA	#FFFFFF	#000000	##FFFFFF
##273CAA	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAE

Deuteranopia (green-blind)

#0042A8

Tritanopia (blue-blind)

#00596D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #273caa;
/* rgb */ color: rgb(39, 60, 170);
/* oklch */ color: oklch(41.6% 0.177 268.7);

Tailwind

colors: {
  custom: {
    50: '#7671c4',
    500: '#273caa',
    950: '#000000',
  },
}

SCSS

$custom: #273caa;
$custom-light: #7671c4;
$custom-dark: #000000;

JSON

{
  "hex": "#273caa",
  "rgb": {
    "r": 39,
    "g": 60,
    "b": 170
  },
  "hsl": {
    "h": 230.382,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41598,
    "c": 0.17674,
    "h": 268.7
  },
  "luminance": 0.06565
}

Semantic roles & 50–950 ramp

primary

#273CAA

secondary

#C4B669

accent

#CB42E6

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #273CAA

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

Preview Lab → · Contrast checker → · Palette generator →