#273B7F#273B7F

#273B7F is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.7% C 0.118 H 268.0°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#273B7F
RGB	rgb(39, 59, 127)
HSL	hsl(226, 53%, 33%)
HSV	hsv(226, 69%, 50%)
CMYK	cmyk(69.3%, 53.5%, 0%, 50.2%)
CIE-LAB	lab(26.99, 16.29, -40.93)
CIE-LCH	lch(26.99, 44.05, 291.70°)
OKLab	oklab(37.66% -0.0041 -0.1175)
OKLCH	oklch(37.66% 0.118 268)
XYZ	xyz(6.2301, 5.0910, 20.7289)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273B7F #7F6B27

analogous

#27677F #273B7F #3F277F

triadic

#273B7F #7F273B #3B7F27

tetradic

#273B7F #7F2767 #7F6B27 #277F3F

square

#273B7F #7F2767 #7F6B27 #277F3F

split-complementary

#273B7F #7F3F27 #677F27

monochromatic

#0A0F21 #192550 #273B7F #3551AE #5570CB

Accessibility & contrast

On white

10.40

#273B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#273B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273B7F

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273B7F	#FFFFFF	#000000	##FFFFFF
##273B7F	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#114481

Deuteranopia (green-blind)

#003C7E

Tritanopia (blue-blind)

#004B57

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #273b7f;
/* rgb */ color: rgb(39, 59, 127);
/* oklch */ color: oklch(37.7% 0.118 268.0);

Tailwind

colors: {
  custom: {
    50: '#6c70a5',
    500: '#273b7f',
    950: '#000000',
  },
}

SCSS

$custom: #273b7f;
$custom-light: #6c70a5;
$custom-dark: #000000;

JSON

{
  "hex": "#273b7f",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 127
  },
  "hsl": {
    "h": 226.364,
    "s": 53.012,
    "l": 32.549
  },
  "oklch": {
    "l": 0.37661,
    "c": 0.11758,
    "h": 268
  },
  "luminance": 0.05092
}

Semantic roles & 50–950 ramp

primary

#273B7F

secondary

#B09A52

accent

#BB4BDC

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #273B7F

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

Preview Lab → · Contrast checker → · Palette generator →