#273D9D#273D9D

#273D9D is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.6% C 0.158 H 268.4°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#273D9D
RGB	rgb(39, 61, 157)
HSL	hsl(229, 60%, 38%)
HSV	hsv(229, 75%, 62%)
CMYK	cmyk(75.2%, 61.1%, 0%, 38.4%)
CIE-LAB	lab(29.92, 26.46, -54.68)
CIE-LCH	lch(29.92, 60.74, 295.82°)
OKLab	oklab(40.6% -0.0043 -0.1579)
OKLCH	oklch(40.6% 0.158 268.4)
XYZ	xyz(8.5891, 6.2022, 32.6362)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D9D #9D8727

analogous

#27789D #273D9D #4C279D

triadic

#273D9D #9D273D #3D9D27

tetradic

#273D9D #9D2778 #9D8727 #279D4C

square

#273D9D #9D2778 #9D8727 #279D4C

split-complementary

#273D9D #9D4C27 #789D27

monochromatic

#0F173B #1B2A6C #273D9D #3551CD #667BD9

Accessibility & contrast

On white

9.37

#273D9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#273D9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D9D

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D9D	#FFFFFF	#000000	##FFFFFF
##273D9D	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA0

Deuteranopia (green-blind)

#00419B

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #273d9d;
/* rgb */ color: rgb(39, 61, 157);
/* oklch */ color: oklch(40.6% 0.158 268.4);

Tailwind

colors: {
  custom: {
    50: '#7372bb',
    500: '#273d9d',
    950: '#000000',
  },
}

SCSS

$custom: #273d9d;
$custom-light: #7372bb;
$custom-dark: #000000;

JSON

{
  "hex": "#273d9d",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 157
  },
  "hsl": {
    "h": 228.814,
    "s": 60.204,
    "l": 38.431
  },
  "oklch": {
    "l": 0.406,
    "c": 0.15797,
    "h": 268.4
  },
  "luminance": 0.06203
}

Semantic roles & 50–950 ramp

primary

#273D9D

secondary

#BFAD61

accent

#C644E3

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #273D9D

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

Preview Lab → · Contrast checker → · Palette generator →