#273EAD#273EAD

#273EAD is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.2% C 0.178 H 268.3°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#273EAD
RGB	rgb(39, 62, 173)
HSL	hsl(230, 63%, 42%)
HSV	hsv(230, 77%, 68%)
CMYK	cmyk(77.5%, 64.2%, 0%, 32.2%)
CIE-LAB	lab(31.56, 31.82, -61.62)
CIE-LCH	lch(31.56, 69.35, 297.31°)
OKLab	oklab(42.25% -0.0053 -0.1782)
OKLCH	oklch(42.25% 0.178 268.3)
XYZ	xyz(10.0995, 6.8926, 40.3252)
Luminance	0.0689 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#273EAD #AD9627

analogous

#2781AD #273EAD #5327AD

triadic

#273EAD #AD273E #3EAD27

tetradic

#273EAD #AD2781 #AD9627 #27AD53

square

#273EAD #AD2781 #AD9627 #27AD53

split-complementary

#273EAD #AD5327 #81AD27

monochromatic

#101A49 #1C2C7B #273EAD #3E57D3 #7083DF

Accessibility & contrast

On white

8.83

#273EAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#273EAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #273EAD

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##273EAD	#FFFFFF	#000000	##FFFFFF
##273EAD	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B1

Deuteranopia (green-blind)

#0044AB

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #273ead;
/* rgb */ color: rgb(39, 62, 173);
/* oklch */ color: oklch(42.2% 0.178 268.3);

Tailwind

colors: {
  custom: {
    50: '#7773c6',
    500: '#273ead',
    950: '#000000',
  },
}

SCSS

$custom: #273ead;
$custom-light: #7773c6;
$custom-dark: #000000;

JSON

{
  "hex": "#273ead",
  "rgb": {
    "r": 39,
    "g": 62,
    "b": 173
  },
  "hsl": {
    "h": 229.701,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.42246,
    "c": 0.17833,
    "h": 268.3
  },
  "luminance": 0.06894
}

Semantic roles & 50–950 ramp

primary

#273EAD

secondary

#C6B66A

accent

#CA42E6

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #273EAD

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

Preview Lab → · Contrast checker → · Palette generator →