#2A3166#2A3166

#2A3166 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.7% C 0.092 H 274.7°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#2A3166
RGB	rgb(42, 49, 102)
HSL	hsl(233, 42%, 28%)
HSV	hsv(233, 59%, 40%)
CMYK	cmyk(58.8%, 52%, 0%, 60%)
CIE-LAB	lab(22.47, 14.39, -32.25)
CIE-LCH	lch(22.47, 35.31, 294.05°)
OKLab	oklab(33.72% 0.0075 -0.092)
OKLCH	oklch(33.72% 0.092 274.7)
XYZ	xyz(4.4507, 3.6479, 13.0374)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3166 #665F2A

analogous

#2A4F66 #2A3166 #412A66

triadic

#2A3166 #662A31 #31662A

tetradic

#2A3166 #662A4F #665F2A #2A6641

square

#2A3166 #662A4F #665F2A #2A6641

split-complementary

#2A3166 #66412A #4F662A

monochromatic

#090A16 #181C3B #2A3166 #3C4691 #525EB8

Accessibility & contrast

On white

12.14

#2A3166 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#2A3166 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3166

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3166	#FFFFFF	#000000	##FFFFFF
##2A3166	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173868

Deuteranopia (green-blind)

#0F3365

Tritanopia (blue-blind)

#0A3D46

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #2a3166;
/* rgb */ color: rgb(42, 49, 102);
/* oklch */ color: oklch(33.7% 0.092 274.7);

Tailwind

colors: {
  custom: {
    50: '#696892',
    500: '#2a3166',
    950: '#000000',
  },
}

SCSS

$custom: #2a3166;
$custom-light: #696892;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3166",
  "rgb": {
    "r": 42,
    "g": 49,
    "b": 102
  },
  "hsl": {
    "h": 233,
    "s": 41.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.33715,
    "c": 0.09234,
    "h": 274.7
  },
  "luminance": 0.03648
}

Semantic roles & 50–950 ramp

primary

#2A3166

secondary

#989054

accent

#C356D1

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#07060D

muted

#7A7A7E

Preview Lab

Preview with #2A3166

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

Preview Lab → · Contrast checker → · Palette generator →