#273D9C#273D9C

#273D9C is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.5% C 0.157 H 268.4°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#273D9C
RGB	rgb(39, 61, 156)
HSL	hsl(229, 60%, 38%)
HSV	hsv(229, 75%, 61%)
CMYK	cmyk(75%, 60.9%, 0%, 38.8%)
CIE-LAB	lab(29.83, 26.08, -54.21)
CIE-LCH	lch(29.83, 60.16, 295.69°)
OKLab	oklab(40.51% -0.0043 -0.1565)
OKLCH	oklch(40.51% 0.157 268.4)
XYZ	xyz(8.5041, 6.1682, 32.1884)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D9C #9C8627

analogous

#27779C #273D9C #4B279C

triadic

#273D9C #9C273D #3D9C27

tetradic

#273D9C #9C2777 #9C8627 #279C4B

square

#273D9C #9C2777 #9C8627 #279C4B

split-complementary

#273D9C #9C4B27 #779C27

monochromatic

#0F173A #1B2A6B #273D9C #3451CC #657BD8

Accessibility & contrast

On white

9.40

#273D9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#273D9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D9C

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D9C	#FFFFFF	#000000	##FFFFFF
##273D9C	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9F

Deuteranopia (green-blind)

#00419A

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #273d9c;
/* rgb */ color: rgb(39, 61, 156);
/* oklch */ color: oklch(40.5% 0.157 268.4);

Tailwind

colors: {
  custom: {
    50: '#7372ba',
    500: '#273d9c',
    950: '#000000',
  },
}

SCSS

$custom: #273d9c;
$custom-light: #7372ba;
$custom-dark: #000000;

JSON

{
  "hex": "#273d9c",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 156
  },
  "hsl": {
    "h": 228.718,
    "s": 60,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40512,
    "c": 0.15659,
    "h": 268.4
  },
  "luminance": 0.06169
}

Semantic roles & 50–950 ramp

primary

#273D9C

secondary

#BEAD61

accent

#C545E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #273D9C

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

Preview Lab → · Contrast checker → · Palette generator →