#273A90#273A90

#273A90 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.9% C 0.144 H 269.1°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#273A90
RGB	rgb(39, 58, 144)
HSL	hsl(229, 57%, 36%)
HSV	hsv(229, 73%, 56%)
CMYK	cmyk(72.9%, 59.7%, 0%, 43.5%)
CIE-LAB	lab(28.03, 23.52, -49.80)
CIE-LCH	lch(28.03, 55.08, 295.28°)
OKLab	oklab(38.86% -0.0022 -0.1436)
OKLCH	oklch(38.86% 0.144 269.1)
XYZ	xyz(7.3821, 5.4703, 27.0470)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A90 #907D27

analogous

#276E90 #273A90 #482790

triadic

#273A90 #90273A #3A9027

tetradic

#273A90 #90276E #907D27 #279048

square

#273A90 #90276E #907D27 #279048

split-complementary

#273A90 #904827 #6E9027

monochromatic

#0D1330 #1A2760 #273A90 #344DC0 #5E73D3

Accessibility & contrast

On white

10.03

#273A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#273A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A90

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A90	#FFFFFF	#000000	##FFFFFF
##273A90	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004793

Deuteranopia (green-blind)

#003D8E

Tritanopia (blue-blind)

#004F5F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #273a90;
/* rgb */ color: rgb(39, 58, 144);
/* oklch */ color: oklch(38.9% 0.144 269.1);

Tailwind

colors: {
  custom: {
    50: '#706fb1',
    500: '#273a90',
    950: '#000000',
  },
}

SCSS

$custom: #273a90;
$custom-light: #706fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#273a90",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 144
  },
  "hsl": {
    "h": 229.143,
    "s": 57.377,
    "l": 35.882
  },
  "oklch": {
    "l": 0.38861,
    "c": 0.14364,
    "h": 269.1
  },
  "luminance": 0.05471
}

Semantic roles & 50–950 ramp

primary

#273A90

secondary

#B9A85A

accent

#C547E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #273A90

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

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