#273EA0#273EA0

#273EA0 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.1% C 0.161 H 268.2°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#273EA0
RGB	rgb(39, 62, 160)
HSL	hsl(229, 61%, 39%)
HSV	hsv(229, 76%, 63%)
CMYK	cmyk(75.6%, 61.2%, 0%, 37.3%)
CIE-LAB	lab(30.43, 26.93, -55.66)
CIE-LCH	lch(30.43, 61.83, 295.82°)
OKLab	oklab(41.06% -0.005 -0.1608)
OKLCH	oklch(41.06% 0.161 268.2)
XYZ	xyz(8.9023, 6.4137, 34.0197)
Luminance	0.0641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273EA0 #A08927

analogous

#277BA0 #273EA0 #4D27A0

triadic

#273EA0 #A0273E #3EA027

tetradic

#273EA0 #A0277B #A08927 #27A04D

square

#273EA0 #A0277B #A08927 #27A04D

split-complementary

#273EA0 #A04D27 #7BA027

monochromatic

#0F183E #1B2B6F #273EA0 #3653CE #677DDA

Accessibility & contrast

On white

9.20

#273EA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#273EA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273EA0

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273EA0	#FFFFFF	#000000	##FFFFFF
##273EA0	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA3

Deuteranopia (green-blind)

#00429E

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #273ea0;
/* rgb */ color: rgb(39, 62, 160);
/* oklch */ color: oklch(41.1% 0.161 268.2);

Tailwind

colors: {
  custom: {
    50: '#7473bd',
    500: '#273ea0',
    950: '#000000',
  },
}

SCSS

$custom: #273ea0;
$custom-light: #7473bd;
$custom-dark: #000000;

JSON

{
  "hex": "#273ea0",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 160
  },
  "hsl": {
    "h": 228.595,
    "s": 60.804,
    "l": 39.02
  },
  "oklch": {
    "l": 0.41062,
    "c": 0.16084,
    "h": 268.2
  },
  "luminance": 0.06415
}

Semantic roles & 50–950 ramp

primary

#273EA0

secondary

#C0AE63

accent

#C644E4

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #273EA0

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

Preview Lab → · Contrast checker → · Palette generator →