#2B3758#2B3758

#2B3758 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.2% C 0.060 H 268.0°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#2B3758
RGB	rgb(43, 55, 88)
HSL	hsl(224, 34%, 26%)
HSV	hsv(224, 51%, 35%)
CMYK	cmyk(51.1%, 37.5%, 0%, 65.5%)
CIE-LAB	lab(23.51, 5.40, -21.44)
CIE-LCH	lch(23.51, 22.11, 284.14°)
OKLab	oklab(34.24% -0.0021 -0.0603)
OKLCH	oklch(34.24% 0.06 268)
XYZ	xyz(4.1233, 3.9503, 9.7758)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3758 #584C2B

analogous

#2B4D58 #2B3758 #352B58

triadic

#2B3758 #582B37 #37582B

tetradic

#2B3758 #582B4D #584C2B #2B5835

square

#2B3758 #582B4D #584C2B #2B5835

split-complementary

#2B3758 #58352B #4D582B

monochromatic

#0A0D15 #171D2F #2B3758 #3F5181 #536AAA

Accessibility & contrast

On white

11.73

#2B3758 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#2B3758 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3758

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3758	#FFFFFF	#000000	##FFFFFF
##2B3758	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3A59

Deuteranopia (green-blind)

#263657

Tritanopia (blue-blind)

#193E43

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b3758;
/* rgb */ color: rgb(43, 55, 88);
/* oklch */ color: oklch(34.2% 0.060 268.0);

Tailwind

colors: {
  custom: {
    50: '#676d87',
    500: '#2b3758',
    950: '#000000',
  },
}

SCSS

$custom: #2b3758;
$custom-light: #676d87;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3758",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 88
  },
  "hsl": {
    "h": 224,
    "s": 34.351,
    "l": 25.686
  },
  "oklch": {
    "l": 0.34243,
    "c": 0.06037,
    "h": 268
  },
  "luminance": 0.03951
}

Semantic roles & 50–950 ramp

primary

#2B3758

secondary

#8A7C55

accent

#AD5DCA

background

#F6F6F8

surface

#EBEBEF

border

#C6C6CA

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #2B3758

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

Preview Lab → · Contrast checker → · Palette generator →