#273F7D#273F7D

#273F7D is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.4% C 0.109 H 265.6°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#273F7D
RGB	rgb(39, 63, 125)
HSL	hsl(223, 52%, 32%)
HSV	hsv(223, 69%, 49%)
CMYK	cmyk(68.8%, 49.6%, 0%, 51%)
CIE-LAB	lab(28.02, 12.75, -38.01)
CIE-LCH	lch(28.02, 40.09, 288.54°)
OKLab	oklab(38.4% -0.0084 -0.1089)
OKLCH	oklch(38.4% 0.109 265.6)
XYZ	xyz(6.3146, 5.4664, 20.1204)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273F7D #7D6527

analogous

#276A7D #273F7D #3A277D

triadic

#273F7D #7D273F #3F7D27

tetradic

#273F7D #7D276A #7D6527 #277D3A

square

#273F7D #7D276A #7D6527 #277D3A

split-complementary

#273F7D #7D3A27 #6A7D27

monochromatic

#0A1020 #18274E #273F7D #3657AC #5575CA

Accessibility & contrast

On white

10.03

#273F7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#273F7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273F7D

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273F7D	#FFFFFF	#000000	##FFFFFF
##273F7D	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F467F

Deuteranopia (green-blind)

#0B3E7C

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #273f7d;
/* rgb */ color: rgb(39, 63, 125);
/* oklch */ color: oklch(38.4% 0.109 265.6);

Tailwind

colors: {
  custom: {
    50: '#6c73a3',
    500: '#273f7d',
    950: '#000000',
  },
}

SCSS

$custom: #273f7d;
$custom-light: #6c73a3;
$custom-dark: #000000;

JSON

{
  "hex": "#273f7d",
  "rgb": {
    "r": 39,
    "g": 63,
    "b": 125
  },
  "hsl": {
    "h": 223.256,
    "s": 52.439,
    "l": 32.157
  },
  "oklch": {
    "l": 0.384,
    "c": 0.10919,
    "h": 265.6
  },
  "luminance": 0.05467
}

Semantic roles & 50–950 ramp

primary

#273F7D

secondary

#AF9551

accent

#B44CDC

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #273F7D

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

Preview Lab → · Contrast checker → · Palette generator →