#273A7F#273A7F

#273A7F is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.4% C 0.119 H 268.5°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#273A7F
RGB	rgb(39, 58, 127)
HSL	hsl(227, 53%, 33%)
HSV	hsv(227, 69%, 50%)
CMYK	cmyk(69.3%, 54.3%, 0%, 50.2%)
CIE-LAB	lab(26.70, 16.98, -41.40)
CIE-LCH	lch(26.70, 44.74, 292.30°)
OKLab	oklab(37.44% -0.0031 -0.1189)
OKLCH	oklch(37.44% 0.119 268.5)
XYZ	xyz(6.1792, 4.9892, 20.7119)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A7F #7F6C27

analogous

#27667F #273A7F #40277F

triadic

#273A7F #7F273A #3A7F27

tetradic

#273A7F #7F2766 #7F6C27 #277F40

square

#273A7F #7F2766 #7F6C27 #277F40

split-complementary

#273A7F #7F4027 #667F27

monochromatic

#0A0F21 #192550 #273A7F #354FAE #556FCB

Accessibility & contrast

On white

10.51

#273A7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#273A7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A7F

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A7F	#FFFFFF	#000000	##FFFFFF
##273A7F	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4381

Deuteranopia (green-blind)

#003B7E

Tritanopia (blue-blind)

#004A56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #273a7f;
/* rgb */ color: rgb(39, 58, 127);
/* oklch */ color: oklch(37.4% 0.119 268.5);

Tailwind

colors: {
  custom: {
    50: '#6c6fa5',
    500: '#273a7f',
    950: '#000000',
  },
}

SCSS

$custom: #273a7f;
$custom-light: #6c6fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#273a7f",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 127
  },
  "hsl": {
    "h": 227.045,
    "s": 53.012,
    "l": 32.549
  },
  "oklch": {
    "l": 0.37442,
    "c": 0.11894,
    "h": 268.5
  },
  "luminance": 0.0499
}

Semantic roles & 50–950 ramp

primary

#273A7F

secondary

#B09B52

accent

#BD4BDC

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #273A7F

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

Preview Lab → · Contrast checker → · Palette generator →