#273B76#273B76

#273B76 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.0% C 0.104 H 267.1°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#273B76
RGB	rgb(39, 59, 118)
HSL	hsl(225, 50%, 31%)
HSV	hsv(225, 67%, 46%)
CMYK	cmyk(66.9%, 50%, 0%, 53.7%)
CIE-LAB	lab(26.35, 12.81, -36.29)
CIE-LCH	lch(26.35, 38.48, 289.44°)
OKLab	oklab(36.97% -0.0052 -0.1039)
OKLCH	oklch(36.97% 0.104 267.1)
XYZ	xyz(5.6696, 4.8668, 17.7766)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273B76 #766227

analogous

#276276 #273B76 #3A2776

triadic

#273B76 #76273B #3B7627

tetradic

#273B76 #762762 #766227 #27763A

square

#273B76 #762762 #766227 #27763A

split-complementary

#273B76 #763A27 #627627

monochromatic

#090D1A #182448 #273B76 #3652A4 #526FC6

Accessibility & contrast

On white

10.64

#273B76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#273B76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273B76

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273B76	#FFFFFF	#000000	##FFFFFF
##273B76	1.00	10.64	1.97	10.64
#FFFFFF	10.64	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4278

Deuteranopia (green-blind)

#0C3B75

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #273b76;
/* rgb */ color: rgb(39, 59, 118);
/* oklch */ color: oklch(37.0% 0.104 267.1);

Tailwind

colors: {
  custom: {
    50: '#6a709e',
    500: '#273b76',
    950: '#000000',
  },
}

SCSS

$custom: #273b76;
$custom-light: #6a709e;
$custom-dark: #000000;

JSON

{
  "hex": "#273b76",
  "rgb": {
    "r": 39,
    "g": 59,
    "b": 118
  },
  "hsl": {
    "h": 224.81,
    "s": 50.318,
    "l": 30.784
  },
  "oklch": {
    "l": 0.36969,
    "c": 0.10399,
    "h": 267.1
  },
  "luminance": 0.04867
}

Semantic roles & 50–950 ramp

primary

#273B76

secondary

#A89251

accent

#B64EDA

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #273B76

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

Preview Lab → · Contrast checker → · Palette generator →