#2731AE#2731AE

#2731AE is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.1% C 0.194 H 270.5°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#2731AE
RGB	rgb(39, 49, 174)
HSL	hsl(236, 63%, 42%)
HSV	hsv(236, 78%, 68%)
CMYK	cmyk(77.6%, 71.8%, 0%, 31.8%)
CIE-LAB	lab(28.60, 40.40, -67.09)
CIE-LCH	lch(28.60, 78.32, 301.05°)
OKLab	oklab(40.12% 0.0016 -0.1943)
OKLCH	oklch(40.12% 0.194 270.5)
XYZ	xyz(9.5724, 5.6829, 40.6286)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2731AE #AEA427

analogous

#2774AE #2731AE #6127AE

triadic

#2731AE #AE2731 #31AE27

tetradic

#2731AE #AE2774 #AEA427 #27AE61

square

#2731AE #AE2774 #AEA427 #27AE61

split-complementary

#2731AE #AE6127 #74AE27

monochromatic

#11154A #1C237C #2731AE #3E49D4 #7079DF

Accessibility & contrast

On white

9.83

#2731AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#2731AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2731AE

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2731AE	#FFFFFF	#000000	##FFFFFF
##2731AE	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB2

Deuteranopia (green-blind)

#003DAC

Tritanopia (blue-blind)

#00546C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2731ae;
/* rgb */ color: rgb(39, 49, 174);
/* oklch */ color: oklch(40.1% 0.194 270.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#2731ae",
  "rgb": {
    "r": 39,
    "g": 49,
    "b": 174
  },
  "hsl": {
    "h": 235.556,
    "s": 63.38,
    "l": 41.765
  },
  "oklch": {
    "l": 0.40119,
    "c": 0.19428,
    "h": 270.5
  },
  "luminance": 0.05684
}

Semantic roles & 50–950 ramp

primary

#2731AE

secondary

#C6BF6B

accent

#DA41E6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2731AE

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

Preview Lab → · Contrast checker → · Palette generator →