#273D91#273D91

#273D91 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.6% C 0.141 H 268.1°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#273D91
RGB	rgb(39, 61, 145)
HSL	hsl(228, 58%, 36%)
HSV	hsv(228, 73%, 57%)
CMYK	cmyk(73.1%, 57.9%, 0%, 43.1%)
CIE-LAB	lab(28.93, 21.86, -48.95)
CIE-LCH	lch(28.93, 53.61, 294.07°)
OKLab	oklab(39.56% -0.0046 -0.1411)
OKLCH	oklch(39.56% 0.141 268.1)
XYZ	xyz(7.6145, 5.8124, 27.5032)
Luminance	0.0581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D91 #917B27

analogous

#277291 #273D91 #462791

triadic

#273D91 #91273D #3D9127

tetradic

#273D91 #912772 #917B27 #279146

square

#273D91 #912772 #917B27 #279146

split-complementary

#273D91 #914627 #729127

monochromatic

#0D1431 #1A2961 #273D91 #3451C1 #5F77D4

Accessibility & contrast

On white

9.71

#273D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#273D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D91

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D91	#FFFFFF	#000000	##FFFFFF
##273D91	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#00408F

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #273d91;
/* rgb */ color: rgb(39, 61, 145);
/* oklch */ color: oklch(39.6% 0.141 268.1);

Tailwind

colors: {
  custom: {
    50: '#7072b2',
    500: '#273d91',
    950: '#000000',
  },
}

SCSS

$custom: #273d91;
$custom-light: #7072b2;
$custom-dark: #000000;

JSON

{
  "hex": "#273d91",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 145
  },
  "hsl": {
    "h": 227.547,
    "s": 57.609,
    "l": 36.078
  },
  "oklch": {
    "l": 0.39559,
    "c": 0.14117,
    "h": 268.1
  },
  "luminance": 0.05813
}

Semantic roles & 50–950 ramp

primary

#273D91

secondary

#B9A65B

accent

#C147E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #273D91

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

Preview Lab → · Contrast checker → · Palette generator →