#273BAA#273BAA

#273BAA is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.4% C 0.178 H 268.9°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#273BAA
RGB	rgb(39, 59, 170)
HSL	hsl(231, 63%, 41%)
HSV	hsv(231, 77%, 67%)
CMYK	cmyk(77.1%, 65.3%, 0%, 33.3%)
CIE-LAB	lab(30.55, 32.66, -61.49)
CIE-LCH	lch(30.55, 69.63, 297.97°)
OKLab	oklab(41.42% -0.0033 -0.1779)
OKLCH	oklch(41.42% 0.178 268.9)
XYZ	xyz(9.6539, 6.4605, 38.7606)
Luminance	0.0646 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273BAA #AA9627

analogous

#277CAA #273BAA #5427AA

triadic

#273BAA #AA273B #3BAA27

tetradic

#273BAA #AA277C #AA9627 #27AA54

square

#273BAA #AA277C #AA9627 #27AA54

split-complementary

#273BAA #AA5427 #7CAA27

monochromatic

#101846 #1C2A78 #273BAA #3C53D2 #6E7FDE

Accessibility & contrast

On white

9.16

#273BAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#273BAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273BAA

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273BAA	#FFFFFF	#000000	##FFFFFF
##273BAA	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAE

Deuteranopia (green-blind)

#0042A8

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #273baa;
/* rgb */ color: rgb(39, 59, 170);
/* oklch */ color: oklch(41.4% 0.178 268.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#273baa",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 170
  },
  "hsl": {
    "h": 230.84,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41416,
    "c": 0.17792,
    "h": 268.9
  },
  "luminance": 0.06462
}

Semantic roles & 50–950 ramp

primary

#273BAA

secondary

#C4B669

accent

#CD42E6

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #273BAA

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

Preview Lab → · Contrast checker → · Palette generator →