#273F91#273F91

#273F91 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.139 H 267.4°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#273F91
RGB	rgb(39, 63, 145)
HSL	hsl(226, 58%, 36%)
HSV	hsv(226, 73%, 57%)
CMYK	cmyk(73.1%, 56.6%, 0%, 43.1%)
CIE-LAB	lab(29.49, 20.50, -48.05)
CIE-LCH	lch(29.49, 52.24, 293.10°)
OKLab	oklab(39.98% -0.0063 -0.1384)
OKLCH	oklch(39.98% 0.139 267.4)
XYZ	xyz(7.7233, 6.0299, 27.5394)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273F91 #917927

analogous

#277491 #273F91 #442791

triadic

#273F91 #91273F #3F9127

tetradic

#273F91 #912774 #917927 #279144

square

#273F91 #912774 #917927 #279144

split-complementary

#273F91 #914427 #749127

monochromatic

#0D1531 #1A2A61 #273F91 #3454C1 #5F79D4

Accessibility & contrast

On white

9.52

#273F91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#273F91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273F91

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273F91	#FFFFFF	#000000	##FFFFFF
##273F91	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B94

Deuteranopia (green-blind)

#00418F

Tritanopia (blue-blind)

#005361

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #273f91;
/* rgb */ color: rgb(39, 63, 145);
/* oklch */ color: oklch(40.0% 0.139 267.4);

Tailwind

colors: {
  custom: {
    50: '#7073b2',
    500: '#273f91',
    950: '#000000',
  },
}

SCSS

$custom: #273f91;
$custom-light: #7073b2;
$custom-dark: #000000;

JSON

{
  "hex": "#273f91",
  "rgb": {
    "r": 39,
    "g": 63,
    "b": 145
  },
  "hsl": {
    "h": 226.415,
    "s": 57.609,
    "l": 36.078
  },
  "oklch": {
    "l": 0.39975,
    "c": 0.13855,
    "h": 267.4
  },
  "luminance": 0.06031
}

Semantic roles & 50–950 ramp

primary

#273F91

secondary

#B9A45B

accent

#BE47E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #273F91

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

Preview Lab → · Contrast checker → · Palette generator →