#2B3757#2B3757

#2B3757 is a dark, muted blue. Relative luminance 0.039; OKLCH L 34.2% C 0.059 H 267.6°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#2B3757
RGB	rgb(43, 55, 87)
HSL	hsl(224, 34%, 25%)
HSV	hsv(224, 51%, 34%)
CMYK	cmyk(50.6%, 36.8%, 0%, 65.9%)
CIE-LAB	lab(23.45, 5.05, -20.87)
CIE-LCH	lch(23.45, 21.47, 283.61°)
OKLab	oklab(34.18% -0.0024 -0.0587)
OKLCH	oklch(34.18% 0.059 267.6)
XYZ	xyz(4.0822, 3.9338, 9.5592)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3757 #574B2B

analogous

#2B4D57 #2B3757 #352B57

triadic

#2B3757 #572B37 #37572B

tetradic

#2B3757 #572B4D #574B2B #2B5735

square

#2B3757 #572B4D #574B2B #2B5735

split-complementary

#2B3757 #57352B #4D572B

monochromatic

#0A0D14 #171D2E #2B3757 #3F5180 #536BA9

Accessibility & contrast

On white

11.75

#2B3757 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#2B3757 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3757

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3757	#FFFFFF	#000000	##FFFFFF
##2B3757	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3A58

Deuteranopia (green-blind)

#273656

Tritanopia (blue-blind)

#1A3E43

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b3757;
/* rgb */ color: rgb(43, 55, 87);
/* oklch */ color: oklch(34.2% 0.059 267.6);

Tailwind

colors: {
  custom: {
    50: '#676d86',
    500: '#2b3757',
    950: '#000000',
  },
}

SCSS

$custom: #2b3757;
$custom-light: #676d86;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3757",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 87
  },
  "hsl": {
    "h": 223.636,
    "s": 33.846,
    "l": 25.49
  },
  "oklch": {
    "l": 0.34183,
    "c": 0.05872,
    "h": 267.6
  },
  "luminance": 0.03934
}

Semantic roles & 50–950 ramp

primary

#2B3757

secondary

#897B55

accent

#AC5ECA

background

#F6F6F8

surface

#EBEBEF

border

#C6C6CA

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #2B3757

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

Preview Lab → · Contrast checker → · Palette generator →