#2B3756#2B3756

#2B3756 is a dark, muted blue. Relative luminance 0.039; OKLCH L 34.1% C 0.057 H 267.2°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#2B3756
RGB	rgb(43, 55, 86)
HSL	hsl(223, 33%, 25%)
HSV	hsv(223, 50%, 34%)
CMYK	cmyk(50%, 36%, 0%, 66.3%)
CIE-LAB	lab(23.40, 4.70, -20.30)
CIE-LCH	lch(23.40, 20.83, 283.05°)
OKLab	oklab(34.12% -0.0027 -0.057)
OKLCH	oklch(34.12% 0.057 267.2)
XYZ	xyz(4.0416, 3.9176, 9.3455)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3756 #564A2B

analogous

#2B4C56 #2B3756 #352B56

triadic

#2B3756 #562B37 #37562B

tetradic

#2B3756 #562B4C #564A2B #2B5635

square

#2B3756 #562B4C #564A2B #2B5635

split-complementary

#2B3756 #56352B #4C562B

monochromatic

#0A0D14 #171D2D #2B3756 #3F517F #546BA8

Accessibility & contrast

On white

11.77

#2B3756 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#2B3756 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3756

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3756	#FFFFFF	#000000	##FFFFFF
##2B3756	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3A57

Deuteranopia (green-blind)

#273655

Tritanopia (blue-blind)

#1B3D42

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b3756;
/* rgb */ color: rgb(43, 55, 86);
/* oklch */ color: oklch(34.1% 0.057 267.2);

Tailwind

colors: {
  custom: {
    50: '#676d86',
    500: '#2b3756',
    950: '#000000',
  },
}

SCSS

$custom: #2b3756;
$custom-light: #676d86;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3756",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 86
  },
  "hsl": {
    "h": 223.256,
    "s": 33.333,
    "l": 25.294
  },
  "oklch": {
    "l": 0.34123,
    "c": 0.05708,
    "h": 267.2
  },
  "luminance": 0.03918
}

Semantic roles & 50–950 ramp

primary

#2B3756

secondary

#887A55

accent

#AC5EC9

background

#F6F6F8

surface

#EBEBEF

border

#C6C6CA

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #2B3756

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

Preview Lab → · Contrast checker → · Palette generator →