#2A39A9#2A39A9

#2A39A9 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.1% C 0.178 H 270.3°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#2A39A9
RGB	rgb(42, 57, 169)
HSL	hsl(233, 60%, 41%)
HSV	hsv(233, 75%, 66%)
CMYK	cmyk(75.1%, 66.3%, 0%, 33.7%)
CIE-LAB	lab(30.11, 33.90, -61.60)
CIE-LCH	lch(30.11, 70.31, 298.83°)
OKLab	oklab(41.11% 0.0009 -0.1781)
OKLCH	oklch(41.11% 0.178 270.3)
XYZ	xyz(9.5770, 6.2820, 38.2363)
Luminance	0.0628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A39A9 #A99A2A

analogous

#2A79A9 #2A39A9 #5B2AA9

triadic

#2A39A9 #A92A39 #39A92A

tetradic

#2A39A9 #A92A79 #A99A2A #2AA95B

square

#2A39A9 #A92A79 #A99A2A #2AA95B

split-complementary

#2A39A9 #A95B2A #79A92A

monochromatic

#121847 #1E2878 #2A39A9 #4151D0 #727EDC

Accessibility & contrast

On white

9.31

#2A39A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2A39A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A39A9

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A39A9	#FFFFFF	#000000	##FFFFFF
##2A39A9	1.00	9.31	2.26	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DAD

Deuteranopia (green-blind)

#0041A7

Tritanopia (blue-blind)

#00576C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2a39a9;
/* rgb */ color: rgb(42, 57, 169);
/* oklch */ color: oklch(41.1% 0.178 270.3);

Tailwind

colors: {
  custom: {
    50: '#776fc4',
    500: '#2a39a9',
    950: '#000000',
  },
}

SCSS

$custom: #2a39a9;
$custom-light: #776fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#2a39a9",
  "rgb": {
    "r": 42,
    "g": 57,
    "b": 169
  },
  "hsl": {
    "h": 232.913,
    "s": 60.19,
    "l": 41.373
  },
  "oklch": {
    "l": 0.41112,
    "c": 0.17815,
    "h": 270.3
  },
  "luminance": 0.06283
}

Semantic roles & 50–950 ramp

primary

#2A39A9

secondary

#C3B96C

accent

#D144E3

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2A39A9

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

Preview Lab → · Contrast checker → · Palette generator →