#2A39A3#2A39A3

#2A39A3 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.5% C 0.170 H 270.4°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#2A39A3
RGB	rgb(42, 57, 163)
HSL	hsl(233, 59%, 40%)
HSV	hsv(233, 74%, 64%)
CMYK	cmyk(74.2%, 65%, 0%, 36.1%)
CIE-LAB	lab(29.57, 31.71, -58.88)
CIE-LCH	lch(29.57, 66.87, 298.30°)
OKLab	oklab(40.55% 0.0012 -0.1702)
OKLCH	oklch(40.55% 0.17 270.4)
XYZ	xyz(9.0266, 6.0619, 35.3376)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A39A3 #A3942A

analogous

#2A75A3 #2A39A3 #572AA3

triadic

#2A39A3 #A32A39 #39A32A

tetradic

#2A39A3 #A32A75 #A3942A #2AA357

square

#2A39A3 #A32A75 #A3942A #2AA357

split-complementary

#2A39A3 #A3572A #75A32A

monochromatic

#111742 #1D2872 #2A39A3 #3D4FCD #6E7BDA

Accessibility & contrast

On white

9.49

#2A39A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#2A39A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A39A3

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A39A3	#FFFFFF	#000000	##FFFFFF
##2A39A3	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA6

Deuteranopia (green-blind)

#0040A1

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2a39a3;
/* rgb */ color: rgb(42, 57, 163);
/* oklch */ color: oklch(40.5% 0.170 270.4);

Tailwind

colors: {
  custom: {
    50: '#766fbf',
    500: '#2a39a3',
    950: '#000000',
  },
}

SCSS

$custom: #2a39a3;
$custom-light: #766fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#2a39a3",
  "rgb": {
    "r": 42,
    "g": 57,
    "b": 163
  },
  "hsl": {
    "h": 232.562,
    "s": 59.024,
    "l": 40.196
  },
  "oklch": {
    "l": 0.40546,
    "c": 0.17019,
    "h": 270.4
  },
  "luminance": 0.06063
}

Semantic roles & 50–950 ramp

primary

#2A39A3

secondary

#C0B668

accent

#CF46E2

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2A39A3

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

Preview Lab → · Contrast checker → · Palette generator →