#273A84#273A84

#273A84 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.8% C 0.126 H 268.8°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#273A84
RGB	rgb(39, 58, 132)
HSL	hsl(228, 54%, 34%)
HSV	hsv(228, 70%, 52%)
CMYK	cmyk(70.5%, 56.1%, 0%, 48.2%)
CIE-LAB	lab(27.08, 18.91, -43.91)
CIE-LCH	lch(27.08, 47.81, 293.30°)
OKLab	oklab(37.85% -0.0027 -0.1263)
OKLCH	oklch(37.85% 0.126 268.8)
XYZ	xyz(6.5132, 5.1228, 22.4709)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A84 #847127

analogous

#276884 #273A84 #422784

triadic

#273A84 #84273A #3A8427

tetradic

#273A84 #842768 #847127 #278442

square

#273A84 #842768 #847127 #278442

split-complementary

#273A84 #844227 #688427

monochromatic

#0B1026 #192555 #273A84 #354FB3 #5870CE

Accessibility & contrast

On white

10.37

#273A84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#273A84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A84

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A84	#FFFFFF	#000000	##FFFFFF
##273A84	1.00	10.37	2.02	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#014487

Deuteranopia (green-blind)

#003C83

Tritanopia (blue-blind)

#004C59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #273a84;
/* rgb */ color: rgb(39, 58, 132);
/* oklch */ color: oklch(37.8% 0.126 268.8);

Tailwind

colors: {
  custom: {
    50: '#6d6fa8',
    500: '#273a84',
    950: '#000000',
  },
}

SCSS

$custom: #273a84;
$custom-light: #6d6fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#273a84",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 132
  },
  "hsl": {
    "h": 227.742,
    "s": 54.386,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37847,
    "c": 0.12633,
    "h": 268.8
  },
  "luminance": 0.05123
}

Semantic roles & 50–950 ramp

primary

#273A84

secondary

#B29F54

accent

#C04ADE

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #273A84

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

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