#2739A5#2739A5

#2739A5 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.6% C 0.174 H 269.4°. Best body text is #FFFFFF at 9.48:1 contrast (WCAG AA passes).

Color values

HEX	#2739A5
RGB	rgb(39, 57, 165)
HSL	hsl(231, 62%, 40%)
HSV	hsv(231, 76%, 65%)
CMYK	cmyk(76.4%, 65.5%, 0%, 35.3%)
CIE-LAB	lab(29.60, 32.11, -60.04)
CIE-LCH	lch(29.60, 68.09, 298.14°)
OKLab	oklab(40.58% -0.0019 -0.1737)
OKLCH	oklch(40.58% 0.174 269.4)
XYZ	xyz(9.0890, 6.0732, 36.2832)
Luminance	0.0607 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2739A5 #A59327

analogous

#2778A5 #2739A5 #5427A5

triadic

#2739A5 #A52739 #39A527

tetradic

#2739A5 #A52778 #A59327 #27A554

square

#2739A5 #A52778 #A59327 #27A554

split-complementary

#2739A5 #A55427 #78A527

monochromatic

#101742 #1B2874 #2739A5 #394FD0 #6A7BDC

Accessibility & contrast

On white

9.48

#2739A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#2739A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2739A5

9.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2739A5	#FFFFFF	#000000	##FFFFFF
##2739A5	1.00	9.48	2.21	9.48
#FFFFFF	9.48	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA8

Deuteranopia (green-blind)

#0040A3

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2739a5;
/* rgb */ color: rgb(39, 57, 165);
/* oklch */ color: oklch(40.6% 0.174 269.4);

Tailwind

colors: {
  custom: {
    50: '#756fc1',
    500: '#2739a5',
    950: '#000000',
  },
}

SCSS

$custom: #2739a5;
$custom-light: #756fc1;
$custom-dark: #000000;

JSON

{
  "hex": "#2739a5",
  "rgb": {
    "r": 39,
    "g": 57,
    "b": 165
  },
  "hsl": {
    "h": 231.429,
    "s": 61.765,
    "l": 40
  },
  "oklch": {
    "l": 0.4058,
    "c": 0.17368,
    "h": 269.4
  },
  "luminance": 0.06074
}

Semantic roles & 50–950 ramp

primary

#2739A5

secondary

#C2B566

accent

#CE43E5

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2739A5

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

Preview Lab → · Contrast checker → · Palette generator →