#2739A0#2739A0

#2739A0 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.1% C 0.167 H 269.4°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#2739A0
RGB	rgb(39, 57, 160)
HSL	hsl(231, 61%, 39%)
HSV	hsv(231, 76%, 63%)
CMYK	cmyk(75.6%, 64.4%, 0%, 37.3%)
CIE-LAB	lab(29.15, 30.25, -57.76)
CIE-LCH	lch(29.15, 65.20, 297.64°)
OKLab	oklab(40.11% -0.0016 -0.167)
OKLCH	oklch(40.11% 0.167 269.4)
XYZ	xyz(8.6428, 5.8947, 33.9332)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2739A0 #A08E27

analogous

#2776A0 #2739A0 #5227A0

triadic

#2739A0 #A02739 #39A027

tetradic

#2739A0 #A02776 #A08E27 #27A052

square

#2739A0 #A02776 #A08E27 #27A052

split-complementary

#2739A0 #A05227 #76A027

monochromatic

#0F163E #1B276F #2739A0 #364DCE #6778DA

Accessibility & contrast

On white

9.64

#2739A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#2739A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2739A0

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2739A0	#FFFFFF	#000000	##FFFFFF
##2739A0	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA3

Deuteranopia (green-blind)

#003F9E

Tritanopia (blue-blind)

#005467

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2739a0;
/* rgb */ color: rgb(39, 57, 160);
/* oklch */ color: oklch(40.1% 0.167 269.4);

Tailwind

colors: {
  custom: {
    50: '#746fbd',
    500: '#2739a0',
    950: '#000000',
  },
}

SCSS

$custom: #2739a0;
$custom-light: #746fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#2739a0",
  "rgb": {
    "r": 39,
    "g": 57,
    "b": 160
  },
  "hsl": {
    "h": 231.074,
    "s": 60.804,
    "l": 39.02
  },
  "oklch": {
    "l": 0.4011,
    "c": 0.16699,
    "h": 269.4
  },
  "luminance": 0.05896
}

Semantic roles & 50–950 ramp

primary

#2739A0

secondary

#C0B263

accent

#CC44E4

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2739A0

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

Preview Lab → · Contrast checker → · Palette generator →