#2A3378#2A3378

#2A3378 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.6% C 0.117 H 273.3°. Best body text is #FFFFFF at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#2A3378
RGB	rgb(42, 51, 120)
HSL	hsl(233, 48%, 32%)
HSV	hsv(233, 65%, 47%)
CMYK	cmyk(65%, 57.5%, 0%, 52.9%)
CIE-LAB	lab(24.37, 19.70, -40.74)
CIE-LCH	lch(24.37, 45.26, 295.81°)
OKLab	oklab(35.57% 0.0068 -0.117)
OKLCH	oklch(35.57% 0.117 273.3)
XYZ	xyz(5.5277, 4.2155, 18.2880)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3378 #786F2A

analogous

#2A5A78 #2A3378 #482A78

triadic

#2A3378 #782A33 #33782A

tetradic

#2A3378 #782A5A #786F2A #2A7848

square

#2A3378 #782A5A #786F2A #2A7848

split-complementary

#2A3378 #78482A #5A782A

monochromatic

#0A0C1D #1A204B #2A3378 #3A46A5 #5864C5

Accessibility & contrast

On white

11.39

#2A3378 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#2A3378 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3378

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3378	#FFFFFF	#000000	##FFFFFF
##2A3378	1.00	11.39	1.84	11.39
#FFFFFF	11.39	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7A

Deuteranopia (green-blind)

#003777

Tritanopia (blue-blind)

#004350

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2a3378;
/* rgb */ color: rgb(42, 51, 120);
/* oklch */ color: oklch(35.6% 0.117 273.3);

Tailwind

colors: {
  custom: {
    50: '#6d6a9f',
    500: '#2a3378',
    950: '#000000',
  },
}

SCSS

$custom: #2a3378;
$custom-light: #6d6a9f;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3378",
  "rgb": {
    "r": 42,
    "g": 51,
    "b": 120
  },
  "hsl": {
    "h": 233.077,
    "s": 48.148,
    "l": 31.765
  },
  "oklch": {
    "l": 0.35568,
    "c": 0.11719,
    "h": 273.3
  },
  "luminance": 0.04216
}

Semantic roles & 50–950 ramp

primary

#2A3378

secondary

#AAA054

accent

#C850D8

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #2A3378

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

Preview Lab → · Contrast checker → · Palette generator →