#2731AD#2731AD

#2731AD is a dark, vivid blue. Relative luminance 0.056; OKLCH L 40.0% C 0.193 H 270.5°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#2731AD
RGB	rgb(39, 49, 173)
HSL	hsl(236, 63%, 42%)
HSV	hsv(236, 77%, 68%)
CMYK	cmyk(77.5%, 71.7%, 0%, 32.2%)
CIE-LAB	lab(28.50, 40.05, -66.66)
CIE-LCH	lch(28.50, 77.77, 301.00°)
OKLab	oklab(40.02% 0.0017 -0.193)
OKLCH	oklch(40.02% 0.193 270.5)
XYZ	xyz(9.4753, 5.6440, 40.1171)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2731AD #ADA327

analogous

#2774AD #2731AD #6027AD

triadic

#2731AD #AD2731 #31AD27

tetradic

#2731AD #AD2774 #ADA327 #27AD60

square

#2731AD #AD2774 #ADA327 #27AD60

split-complementary

#2731AD #AD6027 #74AD27

monochromatic

#101549 #1C237B #2731AD #3E49D3 #7078DF

Accessibility & contrast

On white

9.86

#2731AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2731AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2731AD

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2731AD	#FFFFFF	#000000	##FFFFFF
##2731AD	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB1

Deuteranopia (green-blind)

#003DAB

Tritanopia (blue-blind)

#00546B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2731ad;
/* rgb */ color: rgb(39, 49, 173);
/* oklch */ color: oklch(40.0% 0.193 270.5);

Tailwind

colors: {
  custom: {
    50: '#786ac7',
    500: '#2731ad',
    950: '#000000',
  },
}

SCSS

$custom: #2731ad;
$custom-light: #786ac7;
$custom-dark: #000000;

JSON

{
  "hex": "#2731ad",
  "rgb": {
    "r": 39,
    "g": 49,
    "b": 173
  },
  "hsl": {
    "h": 235.522,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.40015,
    "c": 0.19302,
    "h": 270.5
  },
  "luminance": 0.05645
}

Semantic roles & 50–950 ramp

primary

#2731AD

secondary

#C6BF6A

accent

#DA42E6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2731AD

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

Preview Lab → · Contrast checker → · Palette generator →