#2A3388#2A3388

#2A3388 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.141 H 272.8°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#2A3388
RGB	rgb(42, 51, 136)
HSL	hsl(234, 53%, 35%)
HSV	hsv(234, 69%, 53%)
CMYK	cmyk(69.1%, 62.5%, 0%, 46.7%)
CIE-LAB	lab(25.67, 25.69, -48.69)
CIE-LCH	lch(25.67, 55.05, 297.82°)
OKLab	oklab(36.95% 0.0069 -0.1403)
OKLCH	oklch(36.95% 0.141 272.8)
XYZ	xyz(6.5811, 4.6369, 23.8360)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3388 #887F2A

analogous

#2A6288 #2A3388 #502A88

triadic

#2A3388 #882A33 #33882A

tetradic

#2A3388 #882A62 #887F2A #2A8850

square

#2A3388 #882A62 #887F2A #2A8850

split-complementary

#2A3388 #88502A #62882A

monochromatic

#0D102A #1C2159 #2A3388 #3845B7 #5F69CE

Accessibility & contrast

On white

10.90

#2A3388 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2A3388 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3388

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3388	#FFFFFF	#000000	##FFFFFF
##2A3388	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418B

Deuteranopia (green-blind)

#003986

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2a3388;
/* rgb */ color: rgb(42, 51, 136);
/* oklch */ color: oklch(36.9% 0.141 272.8);

Tailwind

colors: {
  custom: {
    50: '#706aab',
    500: '#2a3388',
    950: '#000000',
  },
}

SCSS

$custom: #2a3388;
$custom-light: #706aab;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3388",
  "rgb": {
    "r": 42,
    "g": 51,
    "b": 136
  },
  "hsl": {
    "h": 234.255,
    "s": 52.809,
    "l": 34.902
  },
  "oklch": {
    "l": 0.36946,
    "c": 0.14052,
    "h": 272.8
  },
  "luminance": 0.04637
}

Semantic roles & 50–950 ramp

primary

#2A3388

secondary

#B3AB5B

accent

#CE4CDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #2A3388

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

Preview Lab → · Contrast checker → · Palette generator →