#273FA0#273FA0

#273FA0 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.3% C 0.160 H 267.9°. Best body text is #FFFFFF at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#273FA0
RGB	rgb(39, 63, 160)
HSL	hsl(228, 61%, 39%)
HSV	hsv(228, 76%, 63%)
CMYK	cmyk(75.6%, 60.6%, 0%, 37.3%)
CIE-LAB	lab(30.70, 26.26, -55.23)
CIE-LCH	lch(30.70, 61.15, 295.43°)
OKLab	oklab(41.26% -0.0058 -0.1595)
OKLCH	oklch(41.26% 0.16 267.9)
XYZ	xyz(8.9572, 6.5234, 34.0380)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273FA0 #A08827

analogous

#277CA0 #273FA0 #4C27A0

triadic

#273FA0 #A0273F #3FA027

tetradic

#273FA0 #A0277C #A08827 #27A04C

square

#273FA0 #A0277C #A08827 #27A04C

split-complementary

#273FA0 #A04C27 #7CA027

monochromatic

#0F183E #1B2C6F #273FA0 #3654CE #677EDA

Accessibility & contrast

On white

9.11

#273FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#273FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273FA0

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273FA0	#FFFFFF	#000000	##FFFFFF
##273FA0	1.00	9.11	2.30	9.11
#FFFFFF	9.11	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA3

Deuteranopia (green-blind)

#00439E

Tritanopia (blue-blind)

#005869

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #273fa0;
/* rgb */ color: rgb(39, 63, 160);
/* oklch */ color: oklch(41.3% 0.160 267.9);

Tailwind

colors: {
  custom: {
    50: '#7473bd',
    500: '#273fa0',
    950: '#000000',
  },
}

SCSS

$custom: #273fa0;
$custom-light: #7473bd;
$custom-dark: #000000;

JSON

{
  "hex": "#273fa0",
  "rgb": {
    "r": 39,
    "g": 63,
    "b": 160
  },
  "hsl": {
    "h": 228.099,
    "s": 60.804,
    "l": 39.02
  },
  "oklch": {
    "l": 0.41258,
    "c": 0.15958,
    "h": 267.9
  },
  "luminance": 0.06524
}

Semantic roles & 50–950 ramp

primary

#273FA0

secondary

#C0AE63

accent

#C444E4

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #273FA0

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

Preview Lab → · Contrast checker → · Palette generator →