#273A7D#273A7D

#273A7D is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.3% C 0.116 H 268.4°. Best body text is #FFFFFF at 10.57:1 contrast (WCAG AA passes).

Color values

HEX	#273A7D
RGB	rgb(39, 58, 125)
HSL	hsl(227, 52%, 32%)
HSV	hsv(227, 69%, 49%)
CMYK	cmyk(68.8%, 53.6%, 0%, 51%)
CIE-LAB	lab(26.56, 16.21, -40.38)
CIE-LCH	lch(26.56, 43.51, 291.87°)
OKLab	oklab(37.28% -0.0033 -0.1159)
OKLCH	oklch(37.28% 0.116 268.4)
XYZ	xyz(6.0502, 4.9375, 20.0323)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A7D #7D6A27

analogous

#27657D #273A7D #3F277D

triadic

#273A7D #7D273A #3A7D27

tetradic

#273A7D #7D2765 #7D6A27 #277D3F

square

#273A7D #7D2765 #7D6A27 #277D3F

split-complementary

#273A7D #7D3F27 #657D27

monochromatic

#0A0F20 #18244E #273A7D #3650AC #556ECA

Accessibility & contrast

On white

10.57

#273A7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#273A7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A7D

10.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A7D	#FFFFFF	#000000	##FFFFFF
##273A7D	1.00	10.57	1.99	10.57
#FFFFFF	10.57	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11437F

Deuteranopia (green-blind)

#003B7C

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #273a7d;
/* rgb */ color: rgb(39, 58, 125);
/* oklch */ color: oklch(37.3% 0.116 268.4);

Tailwind

colors: {
  custom: {
    50: '#6c6fa3',
    500: '#273a7d',
    950: '#000000',
  },
}

SCSS

$custom: #273a7d;
$custom-light: #6c6fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#273a7d",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 125
  },
  "hsl": {
    "h": 226.744,
    "s": 52.439,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37283,
    "c": 0.11595,
    "h": 268.4
  },
  "luminance": 0.04938
}

Semantic roles & 50–950 ramp

primary

#273A7D

secondary

#AF9A51

accent

#BC4CDC

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #273A7D

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

Preview Lab → · Contrast checker → · Palette generator →