#273B71#273B71

#273B71 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.6% C 0.096 H 266.4°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#273B71
RGB	rgb(39, 59, 113)
HSL	hsl(224, 49%, 30%)
HSV	hsv(224, 65%, 44%)
CMYK	cmyk(65.5%, 47.8%, 0%, 55.7%)
CIE-LAB	lab(26.01, 10.89, -33.66)
CIE-LCH	lch(26.01, 35.37, 287.93°)
OKLab	oklab(36.6% -0.006 -0.0961)
OKLCH	oklch(36.6% 0.096 266.4)
XYZ	xyz(5.3803, 4.7510, 16.2531)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273B71 #715D27

analogous

#276071 #273B71 #382771

triadic

#273B71 #71273B #3B7127

tetradic

#273B71 #712760 #715D27 #277138

square

#273B71 #712760 #715D27 #277138

split-complementary

#273B71 #713827 #607127

monochromatic

#080C17 #172344 #273B71 #37539E #506FC3

Accessibility & contrast

On white

10.77

#273B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#273B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273B71

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273B71	#FFFFFF	#000000	##FFFFFF
##273B71	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#214173

Deuteranopia (green-blind)

#153A70

Tritanopia (blue-blind)

#004750

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #273b71;
/* rgb */ color: rgb(39, 59, 113);
/* oklch */ color: oklch(36.6% 0.096 266.4);

Tailwind

colors: {
  custom: {
    50: '#69709a',
    500: '#273b71',
    950: '#000000',
  },
}

SCSS

$custom: #273b71;
$custom-light: #69709a;
$custom-dark: #000000;

JSON

{
  "hex": "#273b71",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 113
  },
  "hsl": {
    "h": 223.784,
    "s": 48.684,
    "l": 29.804
  },
  "oklch": {
    "l": 0.36601,
    "c": 0.09631,
    "h": 266.4
  },
  "luminance": 0.04752
}

Semantic roles & 50–950 ramp

primary

#273B71

secondary

#A38D50

accent

#B350D8

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #273B71

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

Preview Lab → · Contrast checker → · Palette generator →