#273A9A#273A9A

#273A9A is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.7% C 0.158 H 269.2°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#273A9A
RGB	rgb(39, 58, 154)
HSL	hsl(230, 60%, 38%)
HSV	hsv(230, 75%, 60%)
CMYK	cmyk(74.7%, 62.3%, 0%, 39.6%)
CIE-LAB	lab(28.88, 27.33, -54.56)
CIE-LCH	lch(28.88, 61.02, 296.61°)
OKLab	oklab(39.75% -0.0022 -0.1576)
OKLCH	oklch(39.75% 0.158 269.2)
XYZ	xyz(8.1805, 5.7897, 31.2520)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A9A #9A8727

analogous

#27739A #273A9A #4D279A

triadic

#273A9A #9A273A #3A9A27

tetradic

#273A9A #9A2773 #9A8727 #279A4D

square

#273A9A #9A2773 #9A8727 #279A4D

split-complementary

#273A9A #9A4D27 #739A27

monochromatic

#0E1538 #1B2869 #273A9A #334CCB #6477D8

Accessibility & contrast

On white

9.73

#273A9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#273A9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A9A

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A9A	#FFFFFF	#000000	##FFFFFF
##273A9A	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9D

Deuteranopia (green-blind)

#003F98

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #273a9a;
/* rgb */ color: rgb(39, 58, 154);
/* oklch */ color: oklch(39.7% 0.158 269.2);

Tailwind

colors: {
  custom: {
    50: '#7370b9',
    500: '#273a9a',
    950: '#000000',
  },
}

SCSS

$custom: #273a9a;
$custom-light: #7370b9;
$custom-dark: #000000;

JSON

{
  "hex": "#273a9a",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 154
  },
  "hsl": {
    "h": 230.087,
    "s": 59.585,
    "l": 37.843
  },
  "oklch": {
    "l": 0.39748,
    "c": 0.15759,
    "h": 269.2
  },
  "luminance": 0.05791
}

Semantic roles & 50–950 ramp

primary

#273A9A

secondary

#BDAE5F

accent

#C945E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #273A9A

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

Preview Lab → · Contrast checker → · Palette generator →