#273E9F#273E9F

#273E9F is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.0% C 0.159 H 268.2°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#273E9F
RGB	rgb(39, 62, 159)
HSL	hsl(229, 61%, 39%)
HSV	hsv(229, 75%, 62%)
CMYK	cmyk(75.5%, 61%, 0%, 37.6%)
CIE-LAB	lab(30.35, 26.55, -55.19)
CIE-LCH	lch(30.35, 61.24, 295.69°)
OKLab	oklab(40.97% -0.005 -0.1594)
OKLCH	oklch(40.97% 0.159 268.2)
XYZ	xyz(8.8152, 6.3788, 33.5608)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273E9F #9F8827

analogous

#277A9F #273E9F #4C279F

triadic

#273E9F #9F273E #3E9F27

tetradic

#273E9F #9F277A #9F8827 #279F4C

square

#273E9F #9F277A #9F8827 #279F4C

split-complementary

#273E9F #9F4C27 #7A9F27

monochromatic

#0F183D #1B2B6E #273E9F #3653CE #677DDA

Accessibility & contrast

On white

9.23

#273E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#273E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273E9F

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273E9F	#FFFFFF	#000000	##FFFFFF
##273E9F	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA2

Deuteranopia (green-blind)

#00429D

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #273e9f;
/* rgb */ color: rgb(39, 62, 159);
/* oklch */ color: oklch(41.0% 0.159 268.2);

Tailwind

colors: {
  custom: {
    50: '#7373bc',
    500: '#273e9f',
    950: '#000000',
  },
}

SCSS

$custom: #273e9f;
$custom-light: #7373bc;
$custom-dark: #000000;

JSON

{
  "hex": "#273e9f",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 159
  },
  "hsl": {
    "h": 228.5,
    "s": 60.606,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40974,
    "c": 0.15946,
    "h": 268.2
  },
  "luminance": 0.0638
}

Semantic roles & 50–950 ramp

primary

#273E9F

secondary

#C0AE62

accent

#C544E4

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #273E9F

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

Preview Lab → · Contrast checker → · Palette generator →