#273E77#273E77

#273E77 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.101 H 265.3°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#273E77
RGB	rgb(39, 62, 119)
HSL	hsl(223, 51%, 31%)
HSV	hsv(223, 67%, 47%)
CMYK	cmyk(67.2%, 47.9%, 0%, 53.3%)
CIE-LAB	lab(27.32, 11.12, -35.37)
CIE-LCH	lch(27.32, 37.08, 287.45°)
OKLab	oklab(37.73% -0.0083 -0.1011)
OKLCH	oklch(37.73% 0.101 265.3)
XYZ	xyz(5.8879, 5.2079, 18.1441)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273E77 #776027

analogous

#276677 #273E77 #382777

triadic

#273E77 #77273E #3E7727

tetradic

#273E77 #772766 #776027 #277738

square

#273E77 #772766 #776027 #277738

split-complementary

#273E77 #773827 #667727

monochromatic

#090E1B #182649 #273E77 #3656A5 #5273C6

Accessibility & contrast

On white

10.29

#273E77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#273E77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273E77

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273E77	#FFFFFF	#000000	##FFFFFF
##273E77	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224479

Deuteranopia (green-blind)

#143D76

Tritanopia (blue-blind)

#004B54

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #273e77;
/* rgb */ color: rgb(39, 62, 119);
/* oklch */ color: oklch(37.7% 0.101 265.3);

Tailwind

colors: {
  custom: {
    50: '#6a729f',
    500: '#273e77',
    950: '#000000',
  },
}

SCSS

$custom: #273e77;
$custom-light: #6a729f;
$custom-dark: #000000;

JSON

{
  "hex": "#273e77",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 119
  },
  "hsl": {
    "h": 222.75,
    "s": 50.633,
    "l": 30.98
  },
  "oklch": {
    "l": 0.3773,
    "c": 0.10145,
    "h": 265.3
  },
  "luminance": 0.05208
}

Semantic roles & 50–950 ramp

primary

#273E77

secondary

#A99051

accent

#B24EDA

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #273E77

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

Preview Lab → · Contrast checker → · Palette generator →