#2739A6#2739A6

#2739A6 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.7% C 0.175 H 269.4°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#2739A6
RGB	rgb(39, 57, 166)
HSL	hsl(231, 62%, 40%)
HSV	hsv(231, 77%, 65%)
CMYK	cmyk(76.5%, 65.7%, 0%, 34.9%)
CIE-LAB	lab(29.69, 32.48, -60.50)
CIE-LCH	lch(29.69, 68.66, 298.23°)
OKLab	oklab(40.67% -0.0019 -0.175)
OKLCH	oklch(40.67% 0.175 269.4)
XYZ	xyz(9.1804, 6.1098, 36.7645)
Luminance	0.0611 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2739A6 #A69427

analogous

#2778A6 #2739A6 #5427A6

triadic

#2739A6 #A62739 #39A627

tetradic

#2739A6 #A62778 #A69427 #27A654

square

#2739A6 #A62778 #A69427 #27A654

split-complementary

#2739A6 #A65427 #78A627

monochromatic

#101743 #1B2874 #2739A6 #3A4FD1 #6B7BDC

Accessibility & contrast

On white

9.45

#2739A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#2739A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2739A6

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2739A6	#FFFFFF	#000000	##FFFFFF
##2739A6	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA9

Deuteranopia (green-blind)

#0040A4

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2739a6;
/* rgb */ color: rgb(39, 57, 166);
/* oklch */ color: oklch(40.7% 0.175 269.4);

Tailwind

colors: {
  custom: {
    50: '#766fc1',
    500: '#2739a6',
    950: '#000000',
  },
}

SCSS

$custom: #2739a6;
$custom-light: #766fc1;
$custom-dark: #000000;

JSON

{
  "hex": "#2739a6",
  "rgb": {
    "r": 39,
    "g": 57,
    "b": 166
  },
  "hsl": {
    "h": 231.496,
    "s": 61.951,
    "l": 40.196
  },
  "oklch": {
    "l": 0.40675,
    "c": 0.175,
    "h": 269.4
  },
  "luminance": 0.06111
}

Semantic roles & 50–950 ramp

primary

#2739A6

secondary

#C3B666

accent

#CE43E5

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2739A6

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

Preview Lab → · Contrast checker → · Palette generator →