#273D9A#273D9A

#273D9A is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.154 H 268.4°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#273D9A
RGB	rgb(39, 61, 154)
HSL	hsl(229, 60%, 38%)
HSV	hsv(229, 75%, 60%)
CMYK	cmyk(74.7%, 60.4%, 0%, 39.6%)
CIE-LAB	lab(29.67, 25.31, -53.27)
CIE-LCH	lch(29.67, 58.98, 295.42°)
OKLab	oklab(40.34% -0.0044 -0.1538)
OKLCH	oklch(40.34% 0.154 268.4)
XYZ	xyz(8.3362, 6.1010, 31.3039)
Luminance	0.0610 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273D9A #9A8427

analogous

#27769A #273D9A #4B279A

triadic

#273D9A #9A273D #3D9A27

tetradic

#273D9A #9A2776 #9A8427 #279A4B

square

#273D9A #9A2776 #9A8427 #279A4B

split-complementary

#273D9A #9A4B27 #769A27

monochromatic

#0E1638 #1B2A69 #273D9A #3350CB #647AD8

Accessibility & contrast

On white

9.46

#273D9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#273D9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273D9A

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273D9A	#FFFFFF	#000000	##FFFFFF
##273D9A	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9D

Deuteranopia (green-blind)

#004198

Tritanopia (blue-blind)

#005465

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #273d9a;
/* rgb */ color: rgb(39, 61, 154);
/* oklch */ color: oklch(40.3% 0.154 268.4);

Tailwind

colors: {
  custom: {
    50: '#7272b9',
    500: '#273d9a',
    950: '#000000',
  },
}

SCSS

$custom: #273d9a;
$custom-light: #7272b9;
$custom-dark: #000000;

JSON

{
  "hex": "#273d9a",
  "rgb": {
    "r": 39,
    "g": 61,
    "b": 154
  },
  "hsl": {
    "h": 228.522,
    "s": 59.585,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40335,
    "c": 0.15382,
    "h": 268.4
  },
  "luminance": 0.06102
}

Semantic roles & 50–950 ramp

primary

#273D9A

secondary

#BDAB5F

accent

#C545E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #273D9A

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

Preview Lab → · Contrast checker → · Palette generator →