#2A39A4#2A39A4

#2A39A4 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.6% C 0.172 H 270.4°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#2A39A4
RGB	rgb(42, 57, 164)
HSL	hsl(233, 59%, 40%)
HSV	hsv(233, 74%, 64%)
CMYK	cmyk(74.4%, 65.2%, 0%, 35.7%)
CIE-LAB	lab(29.66, 32.07, -59.33)
CIE-LCH	lch(29.66, 67.45, 298.39°)
OKLab	oklab(40.64% 0.0012 -0.1715)
OKLCH	oklch(40.64% 0.172 270.4)
XYZ	xyz(9.1165, 6.0979, 35.8113)
Luminance	0.0610 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A39A4 #A4952A

analogous

#2A76A4 #2A39A4 #582AA4

triadic

#2A39A4 #A42A39 #39A42A

tetradic

#2A39A4 #A42A76 #A4952A #2AA458

square

#2A39A4 #A42A76 #A4952A #2AA458

split-complementary

#2A39A4 #A4582A #76A42A

monochromatic

#111743 #1E2873 #2A39A4 #3E4FCD #6E7CDA

Accessibility & contrast

On white

9.46

#2A39A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#2A39A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A39A4

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A39A4	#FFFFFF	#000000	##FFFFFF
##2A39A4	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA7

Deuteranopia (green-blind)

#0040A2

Tritanopia (blue-blind)

#005569

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2a39a4;
/* rgb */ color: rgb(42, 57, 164);
/* oklch */ color: oklch(40.6% 0.172 270.4);

Tailwind

colors: {
  custom: {
    50: '#766fc0',
    500: '#2a39a4',
    950: '#000000',
  },
}

SCSS

$custom: #2a39a4;
$custom-light: #766fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a39a4",
  "rgb": {
    "r": 42,
    "g": 57,
    "b": 164
  },
  "hsl": {
    "h": 232.623,
    "s": 59.223,
    "l": 40.392
  },
  "oklch": {
    "l": 0.40639,
    "c": 0.17152,
    "h": 270.4
  },
  "luminance": 0.06099
}

Semantic roles & 50–950 ramp

primary

#2A39A4

secondary

#C1B669

accent

#CF45E2

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2A39A4

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

Preview Lab → · Contrast checker → · Palette generator →