#2739A1#2739A1

#2739A1 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.2% C 0.168 H 269.4°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#2739A1
RGB	rgb(39, 57, 161)
HSL	hsl(231, 61%, 39%)
HSV	hsv(231, 76%, 63%)
CMYK	cmyk(75.8%, 64.6%, 0%, 36.9%)
CIE-LAB	lab(29.23, 30.62, -58.22)
CIE-LCH	lch(29.23, 65.78, 297.74°)
OKLab	oklab(40.2% -0.0017 -0.1683)
OKLCH	oklch(40.2% 0.168 269.4)
XYZ	xyz(8.7306, 5.9299, 34.3958)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2739A1 #A18F27

analogous

#2776A1 #2739A1 #5227A1

triadic

#2739A1 #A12739 #39A127

tetradic

#2739A1 #A12776 #A18F27 #27A152

square

#2739A1 #A12776 #A18F27 #27A152

split-complementary

#2739A1 #A15227 #76A127

monochromatic

#0F163E #1B2870 #2739A1 #374DCE #6879DA

Accessibility & contrast

On white

9.61

#2739A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2739A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2739A1

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2739A1	#FFFFFF	#000000	##FFFFFF
##2739A1	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA4

Deuteranopia (green-blind)

#003F9F

Tritanopia (blue-blind)

#005467

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2739a1;
/* rgb */ color: rgb(39, 57, 161);
/* oklch */ color: oklch(40.2% 0.168 269.4);

Tailwind

colors: {
  custom: {
    50: '#746fbe',
    500: '#2739a1',
    950: '#000000',
  },
}

SCSS

$custom: #2739a1;
$custom-light: #746fbe;
$custom-dark: #000000;

JSON

{
  "hex": "#2739a1",
  "rgb": {
    "r": 39,
    "g": 57,
    "b": 161
  },
  "hsl": {
    "h": 231.148,
    "s": 61,
    "l": 39.216
  },
  "oklch": {
    "l": 0.40204,
    "c": 0.16834,
    "h": 269.4
  },
  "luminance": 0.05931
}

Semantic roles & 50–950 ramp

primary

#2739A1

secondary

#C0B363

accent

#CC44E4

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2739A1

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

Preview Lab → · Contrast checker → · Palette generator →