#2739AD#2739AD

#2739AD is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.3% C 0.184 H 269.3°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#2739AD
RGB	rgb(39, 57, 173)
HSL	hsl(232, 63%, 42%)
HSV	hsv(232, 77%, 68%)
CMYK	cmyk(77.5%, 67.1%, 0%, 32.2%)
CIE-LAB	lab(30.34, 35.05, -63.63)
CIE-LCH	lch(30.34, 72.65, 298.85°)
OKLab	oklab(41.35% -0.0024 -0.1842)
OKLCH	oklch(41.35% 0.184 269.3)
XYZ	xyz(9.8401, 6.3736, 40.2387)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.69

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2739AD #AD9B27

analogous

#277CAD #2739AD #5827AD

triadic

#2739AD #AD2739 #39AD27

tetradic

#2739AD #AD277C #AD9B27 #27AD58

square

#2739AD #AD277C #AD9B27 #27AD58

split-complementary

#2739AD #AD5827 #7CAD27

monochromatic

#101849 #1C297B #2739AD #3E52D3 #707FDF

Accessibility & contrast

On white

9.23

#2739AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#2739AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2739AD

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2739AD	#FFFFFF	#000000	##FFFFFF
##2739AD	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB1

Deuteranopia (green-blind)

#0041AB

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2739ad;
/* rgb */ color: rgb(39, 57, 173);
/* oklch */ color: oklch(41.3% 0.184 269.3);

Tailwind

colors: {
  custom: {
    50: '#776fc7',
    500: '#2739ad',
    950: '#000000',
  },
}

SCSS

$custom: #2739ad;
$custom-light: #776fc7;
$custom-dark: #000000;

JSON

{
  "hex": "#2739ad",
  "rgb": {
    "r": 39,
    "g": 57,
    "b": 173
  },
  "hsl": {
    "h": 231.94,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41348,
    "c": 0.18419,
    "h": 269.3
  },
  "luminance": 0.06375
}

Semantic roles & 50–950 ramp

primary

#2739AD

secondary

#C6B96A

accent

#D042E6

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2739AD

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

Preview Lab → · Contrast checker → · Palette generator →