#2B3759#2B3759

#2B3759 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.3% C 0.062 H 268.3°. Best body text is #FFFFFF at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#2B3759
RGB	rgb(43, 55, 89)
HSL	hsl(224, 35%, 26%)
HSV	hsv(224, 52%, 35%)
CMYK	cmyk(51.7%, 38.2%, 0%, 65.1%)
CIE-LAB	lab(23.56, 5.75, -22.01)
CIE-LCH	lch(23.56, 22.75, 284.64°)
OKLab	oklab(34.3% -0.0019 -0.062)
OKLCH	oklch(34.3% 0.062 268.3)
XYZ	xyz(4.1650, 3.9670, 9.9955)
Luminance	0.0397 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3759 #594D2B

analogous

#2B4E59 #2B3759 #362B59

triadic

#2B3759 #592B37 #37592B

tetradic

#2B3759 #592B4E #594D2B #2B5936

square

#2B3759 #592B4E #594D2B #2B5936

split-complementary

#2B3759 #59362B #4E592B

monochromatic

#0A0D15 #171D30 #2B3759 #3F5082 #536AAC

Accessibility & contrast

On white

11.71

#2B3759 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#2B3759 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3759

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3759	#FFFFFF	#000000	##FFFFFF
##2B3759	1.00	11.71	1.79	11.71
#FFFFFF	11.71	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3A5A

Deuteranopia (green-blind)

#263658

Tritanopia (blue-blind)

#193E43

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b3759;
/* rgb */ color: rgb(43, 55, 89);
/* oklch */ color: oklch(34.3% 0.062 268.3);

Tailwind

colors: {
  custom: {
    50: '#676d88',
    500: '#2b3759',
    950: '#000000',
  },
}

SCSS

$custom: #2b3759;
$custom-light: #676d88;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3759",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 89
  },
  "hsl": {
    "h": 224.348,
    "s": 34.848,
    "l": 25.882
  },
  "oklch": {
    "l": 0.34304,
    "c": 0.06202,
    "h": 268.3
  },
  "luminance": 0.03967
}

Semantic roles & 50–950 ramp

primary

#2B3759

secondary

#8B7D55

accent

#AE5DCB

background

#F6F6F8

surface

#EBEBEF

border

#C6C6CA

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #2B3759

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

Preview Lab → · Contrast checker → · Palette generator →