#2A39A6#2A39A6

#2A39A6 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.8% C 0.174 H 270.3°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#2A39A6
RGB	rgb(42, 57, 166)
HSL	hsl(233, 60%, 41%)
HSV	hsv(233, 75%, 65%)
CMYK	cmyk(74.7%, 65.7%, 0%, 34.9%)
CIE-LAB	lab(29.84, 32.81, -60.24)
CIE-LCH	lch(29.84, 68.60, 298.57°)
OKLab	oklab(40.83% 0.0011 -0.1742)
OKLCH	oklch(40.83% 0.174 270.3)
XYZ	xyz(9.2986, 6.1707, 36.7700)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A39A6 #A6972A

analogous

#2A77A6 #2A39A6 #592AA6

triadic

#2A39A6 #A62A39 #39A62A

tetradic

#2A39A6 #A62A77 #A6972A #2AA659

square

#2A39A6 #A62A77 #A6972A #2AA659

split-complementary

#2A39A6 #A6592A #77A62A

monochromatic

#111744 #1E2875 #2A39A6 #3F50CE #707DDB

Accessibility & contrast

On white

9.40

#2A39A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#2A39A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A39A6

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A39A6	#FFFFFF	#000000	##FFFFFF
##2A39A6	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA9

Deuteranopia (green-blind)

#0041A4

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2a39a6;
/* rgb */ color: rgb(42, 57, 166);
/* oklch */ color: oklch(40.8% 0.174 270.3);

Tailwind

colors: {
  custom: {
    50: '#776fc1',
    500: '#2a39a6',
    950: '#000000',
  },
}

SCSS

$custom: #2a39a6;
$custom-light: #776fc1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a39a6",
  "rgb": {
    "r": 42,
    "g": 57,
    "b": 166
  },
  "hsl": {
    "h": 232.742,
    "s": 59.615,
    "l": 40.784
  },
  "oklch": {
    "l": 0.40827,
    "c": 0.17418,
    "h": 270.3
  },
  "luminance": 0.06172
}

Semantic roles & 50–950 ramp

primary

#2A39A6

secondary

#C2B76A

accent

#D045E3

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2A39A6

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

Preview Lab → · Contrast checker → · Palette generator →