#273A9D#273A9D

#273A9D is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.162 H 269.2°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#273A9D
RGB	rgb(39, 58, 157)
HSL	hsl(230, 60%, 38%)
HSV	hsv(230, 75%, 62%)
CMYK	cmyk(75.2%, 63.1%, 0%, 38.4%)
CIE-LAB	lab(29.14, 28.46, -55.96)
CIE-LCH	lch(29.14, 62.78, 296.96°)
OKLab	oklab(40.02% -0.0022 -0.1617)
OKLCH	oklch(40.02% 0.162 269.2)
XYZ	xyz(8.4335, 5.8909, 32.5843)
Luminance	0.0589 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A9D #9D8A27

analogous

#27759D #273A9D #4F279D

triadic

#273A9D #9D273A #3A9D27

tetradic

#273A9D #9D2775 #9D8A27 #279D4F

square

#273A9D #9D2775 #9D8A27 #279D4F

split-complementary

#273A9D #9D4F27 #759D27

monochromatic

#0F163B #1B286C #273A9D #354DCD #6678D9

Accessibility & contrast

On white

9.64

#273A9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#273A9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A9D

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A9D	#FFFFFF	#000000	##FFFFFF
##273A9D	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA0

Deuteranopia (green-blind)

#003F9B

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #273a9d;
/* rgb */ color: rgb(39, 58, 157);
/* oklch */ color: oklch(40.0% 0.162 269.2);

Tailwind

colors: {
  custom: {
    50: '#7370bb',
    500: '#273a9d',
    950: '#000000',
  },
}

SCSS

$custom: #273a9d;
$custom-light: #7370bb;
$custom-dark: #000000;

JSON

{
  "hex": "#273a9d",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 157
  },
  "hsl": {
    "h": 230.339,
    "s": 60.204,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40021,
    "c": 0.1617,
    "h": 269.2
  },
  "luminance": 0.05892
}

Semantic roles & 50–950 ramp

primary

#273A9D

secondary

#BFB061

accent

#CA44E3

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #273A9D

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

Preview Lab → · Contrast checker → · Palette generator →