#273E9D#273E9D

#273E9D is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.8% C 0.157 H 268.1°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#273E9D
RGB	rgb(39, 62, 157)
HSL	hsl(228, 60%, 38%)
HSV	hsv(228, 75%, 62%)
CMYK	cmyk(75.2%, 60.5%, 0%, 38.4%)
CIE-LAB	lab(30.18, 25.78, -54.25)
CIE-LCH	lch(30.18, 60.06, 295.42°)
OKLab	oklab(40.8% -0.0051 -0.1566)
OKLCH	oklch(40.8% 0.157 268.1)
XYZ	xyz(8.6430, 6.3100, 32.6542)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273E9D #9D8627

analogous

#27799D #273E9D #4B279D

triadic

#273E9D #9D273E #3E9D27

tetradic

#273E9D #9D2779 #9D8627 #279D4B

square

#273E9D #9D2779 #9D8627 #279D4B

split-complementary

#273E9D #9D4B27 #799D27

monochromatic

#0F173B #1B2B6C #273E9D #3552CD #667CD9

Accessibility & contrast

On white

9.28

#273E9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#273E9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273E9D

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273E9D	#FFFFFF	#000000	##FFFFFF
##273E9D	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA0

Deuteranopia (green-blind)

#00429B

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #273e9d;
/* rgb */ color: rgb(39, 62, 157);
/* oklch */ color: oklch(40.8% 0.157 268.1);

Tailwind

colors: {
  custom: {
    50: '#7373bb',
    500: '#273e9d',
    950: '#000000',
  },
}

SCSS

$custom: #273e9d;
$custom-light: #7373bb;
$custom-dark: #000000;

JSON

{
  "hex": "#273e9d",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 157
  },
  "hsl": {
    "h": 228.305,
    "s": 60.204,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40797,
    "c": 0.15671,
    "h": 268.1
  },
  "luminance": 0.06311
}

Semantic roles & 50–950 ramp

primary

#273E9D

secondary

#BFAC61

accent

#C444E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #273E9D

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

Preview Lab → · Contrast checker → · Palette generator →