#273F9A#273F9A

#273F9A is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.151 H 267.8°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#273F9A
RGB	rgb(39, 63, 154)
HSL	hsl(227, 60%, 38%)
HSV	hsv(227, 75%, 60%)
CMYK	cmyk(74.7%, 59.1%, 0%, 39.6%)
CIE-LAB	lab(30.20, 23.96, -52.39)
CIE-LCH	lch(30.20, 57.61, 294.58°)
OKLab	oklab(40.74% -0.0059 -0.1512)
OKLCH	oklch(40.74% 0.151 267.8)
XYZ	xyz(8.4449, 6.3185, 31.3401)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273F9A #9A8227

analogous

#27789A #273F9A #48279A

triadic

#273F9A #9A273F #3F9A27

tetradic

#273F9A #9A2778 #9A8227 #279A48

square

#273F9A #9A2778 #9A8227 #279A48

split-complementary

#273F9A #9A4827 #789A27

monochromatic

#0E1738 #1B2B69 #273F9A #3353CB #647CD8

Accessibility & contrast

On white

9.28

#273F9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#273F9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273F9A

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273F9A	#FFFFFF	#000000	##FFFFFF
##273F9A	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9D

Deuteranopia (green-blind)

#004298

Tritanopia (blue-blind)

#005666

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #273f9a;
/* rgb */ color: rgb(39, 63, 154);
/* oklch */ color: oklch(40.7% 0.151 267.8);

Tailwind

colors: {
  custom: {
    50: '#7273b9',
    500: '#273f9a',
    950: '#000000',
  },
}

SCSS

$custom: #273f9a;
$custom-light: #7273b9;
$custom-dark: #000000;

JSON

{
  "hex": "#273f9a",
  "rgb": {
    "r": 39,
    "g": 63,
    "b": 154
  },
  "hsl": {
    "h": 227.478,
    "s": 59.585,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40735,
    "c": 0.15127,
    "h": 267.8
  },
  "luminance": 0.06319
}

Semantic roles & 50–950 ramp

primary

#273F9A

secondary

#BDAA5F

accent

#C245E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #273F9A

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

Preview Lab → · Contrast checker → · Palette generator →