#273A91#273A91

#273A91 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.9% C 0.145 H 269.1°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#273A91
RGB	rgb(39, 58, 145)
HSL	hsl(229, 58%, 36%)
HSV	hsv(229, 73%, 57%)
CMYK	cmyk(73.1%, 60%, 0%, 43.1%)
CIE-LAB	lab(28.12, 23.91, -50.28)
CIE-LCH	lch(28.12, 55.68, 295.43°)
OKLab	oklab(38.95% -0.0022 -0.145)
OKLCH	oklch(38.95% 0.145 269.1)
XYZ	xyz(7.4588, 5.5010, 27.4513)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273A91 #917E27

analogous

#276F91 #273A91 #492791

triadic

#273A91 #91273A #3A9127

tetradic

#273A91 #91276F #917E27 #279149

square

#273A91 #91276F #917E27 #279149

split-complementary

#273A91 #914927 #6F9127

monochromatic

#0D1331 #1A2761 #273A91 #344DC1 #5F74D4

Accessibility & contrast

On white

10.00

#273A91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#273A91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273A91

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273A91	#FFFFFF	#000000	##FFFFFF
##273A91	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004794

Deuteranopia (green-blind)

#003E8F

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #273a91;
/* rgb */ color: rgb(39, 58, 145);
/* oklch */ color: oklch(38.9% 0.145 269.1);

Tailwind

colors: {
  custom: {
    50: '#706fb2',
    500: '#273a91',
    950: '#000000',
  },
}

SCSS

$custom: #273a91;
$custom-light: #706fb2;
$custom-dark: #000000;

JSON

{
  "hex": "#273a91",
  "rgb": {
    "r": 39,
    "g": 58,
    "b": 145
  },
  "hsl": {
    "h": 229.245,
    "s": 57.609,
    "l": 36.078
  },
  "oklch": {
    "l": 0.38949,
    "c": 0.14505,
    "h": 269.1
  },
  "luminance": 0.05502
}

Semantic roles & 50–950 ramp

primary

#273A91

secondary

#B9A85B

accent

#C547E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #273A91

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

Preview Lab → · Contrast checker → · Palette generator →