#273B9C#273B9C

#273B9C is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.159 H 269.0°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#273B9C
RGB	rgb(39, 59, 156)
HSL	hsl(230, 60%, 38%)
HSV	hsv(230, 75%, 61%)
CMYK	cmyk(75%, 62.2%, 0%, 38.8%)
CIE-LAB	lab(29.31, 27.42, -55.07)
CIE-LCH	lch(29.31, 61.51, 296.47°)
OKLab	oklab(40.12% -0.0029 -0.1591)
OKLCH	oklch(40.12% 0.159 269)
XYZ	xyz(8.3993, 5.9587, 32.1535)
Luminance	0.0596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273B9C #9C8827

analogous

#27759C #273B9C #4E279C

triadic

#273B9C #9C273B #3B9C27

tetradic

#273B9C #9C2775 #9C8827 #279C4E

square

#273B9C #9C2775 #9C8827 #279C4E

split-complementary

#273B9C #9C4E27 #759C27

monochromatic

#0F163A #1B286B #273B9C #344ECC #6579D8

Accessibility & contrast

On white

9.58

#273B9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#273B9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273B9C

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273B9C	#FFFFFF	#000000	##FFFFFF
##273B9C	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9F

Deuteranopia (green-blind)

#00409A

Tritanopia (blue-blind)

#005465

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #273b9c;
/* rgb */ color: rgb(39, 59, 156);
/* oklch */ color: oklch(40.1% 0.159 269.0);

Tailwind

colors: {
  custom: {
    50: '#7370ba',
    500: '#273b9c',
    950: '#000000',
  },
}

SCSS

$custom: #273b9c;
$custom-light: #7370ba;
$custom-dark: #000000;

JSON

{
  "hex": "#273b9c",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 156
  },
  "hsl": {
    "h": 229.744,
    "s": 60,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40122,
    "c": 0.15909,
    "h": 269
  },
  "luminance": 0.0596
}

Semantic roles & 50–950 ramp

primary

#273B9C

secondary

#BEAE61

accent

#C845E3

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #273B9C

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

Preview Lab → · Contrast checker → · Palette generator →