#273D79#273D79

#273D79 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.6% C 0.106 H 266.3°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#273D79
RGB	rgb(39, 61, 121)
HSL	hsl(224, 51%, 31%)
HSV	hsv(224, 68%, 47%)
CMYK	cmyk(67.8%, 49.6%, 0%, 52.5%)
CIE-LAB	lab(27.15, 12.58, -36.90)
CIE-LCH	lch(27.15, 38.98, 288.83°)
OKLab	oklab(37.65% -0.0069 -0.1056)
OKLCH	oklch(37.65% 0.106 266.3)
XYZ	xyz(5.9554, 5.1487, 18.7654)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D79 #796327

analogous

#276679 #273D79 #3A2779

triadic

#273D79 #79273D #3D7927

tetradic

#273D79 #792766 #796327 #27793A

square

#273D79 #792766 #796327 #27793A

split-complementary

#273D79 #793A27 #667927

monochromatic

#090E1C #18264B #273D79 #3654A7 #5372C8

Accessibility & contrast

On white

10.35

#273D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#273D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D79

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D79	#FFFFFF	#000000	##FFFFFF
##273D79	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E447B

Deuteranopia (green-blind)

#0D3D78

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #273d79;
/* rgb */ color: rgb(39, 61, 121);
/* oklch */ color: oklch(37.6% 0.106 266.3);

Tailwind

colors: {
  custom: {
    50: '#6b72a0',
    500: '#273d79',
    950: '#000000',
  },
}

SCSS

$custom: #273d79;
$custom-light: #6b72a0;
$custom-dark: #000000;

JSON

{
  "hex": "#273d79",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 121
  },
  "hsl": {
    "h": 223.902,
    "s": 51.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37647,
    "c": 0.10583,
    "h": 266.3
  },
  "luminance": 0.05149
}

Semantic roles & 50–950 ramp

primary

#273D79

secondary

#AB9351

accent

#B54DDB

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #273D79

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

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