#2A39A8#2A39A8

#2A39A8 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.0% C 0.177 H 270.3°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#2A39A8
RGB	rgb(42, 57, 168)
HSL	hsl(233, 60%, 41%)
HSV	hsv(233, 75%, 66%)
CMYK	cmyk(75%, 66.1%, 0%, 34.1%)
CIE-LAB	lab(30.02, 33.54, -61.15)
CIE-LCH	lch(30.02, 69.74, 298.74°)
OKLab	oklab(41.02% 0.0009 -0.1768)
OKLCH	oklch(41.02% 0.177 270.3)
XYZ	xyz(9.4834, 6.2446, 37.7437)
Luminance	0.0625 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A39A8 #A8992A

analogous

#2A78A8 #2A39A8 #5A2AA8

triadic

#2A39A8 #A82A39 #39A82A

tetradic

#2A39A8 #A82A78 #A8992A #2AA85A

square

#2A39A8 #A82A78 #A8992A #2AA85A

split-complementary

#2A39A8 #A85A2A #78A82A

monochromatic

#121846 #1E2877 #2A39A8 #4051CF #717EDB

Accessibility & contrast

On white

9.34

#2A39A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#2A39A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A39A8

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A39A8	#FFFFFF	#000000	##FFFFFF
##2A39A8	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DAB

Deuteranopia (green-blind)

#0041A6

Tritanopia (blue-blind)

#00566B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2a39a8;
/* rgb */ color: rgb(42, 57, 168);
/* oklch */ color: oklch(41.0% 0.177 270.3);

Tailwind

colors: {
  custom: {
    50: '#776fc3',
    500: '#2a39a8',
    950: '#000000',
  },
}

SCSS

$custom: #2a39a8;
$custom-light: #776fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#2a39a8",
  "rgb": {
    "r": 42,
    "g": 57,
    "b": 168
  },
  "hsl": {
    "h": 232.857,
    "s": 60,
    "l": 41.176
  },
  "oklch": {
    "l": 0.41017,
    "c": 0.17683,
    "h": 270.3
  },
  "luminance": 0.06246
}

Semantic roles & 50–950 ramp

primary

#2A39A8

secondary

#C3B86B

accent

#D045E3

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2A39A8

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

Preview Lab → · Contrast checker → · Palette generator →