#2B3E71#2B3E71

#2B3E71 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.5% C 0.091 H 266.7°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#2B3E71
RGB	rgb(43, 62, 113)
HSL	hsl(224, 45%, 31%)
HSV	hsv(224, 62%, 44%)
CMYK	cmyk(61.9%, 45.1%, 0%, 55.7%)
CIE-LAB	lab(27.16, 9.66, -31.81)
CIE-LCH	lch(27.16, 33.25, 286.89°)
OKLab	oklab(37.54% -0.0053 -0.0906)
OKLCH	oklch(37.54% 0.091 266.7)
XYZ	xyz(5.6985, 5.1506, 16.3135)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3E71 #715E2B

analogous

#2B6171 #2B3E71 #3B2B71

triadic

#2B3E71 #712B3E #3E712B

tetradic

#2B3E71 #712B61 #715E2B #2B713B

square

#2B3E71 #712B61 #715E2B #2B713B

split-complementary

#2B3E71 #713B2B #61712B

monochromatic

#090D18 #1A2645 #2B3E71 #3C569D #5773BF

Accessibility & contrast

On white

10.34

#2B3E71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#2B3E71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3E71

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3E71	#FFFFFF	#000000	##FFFFFF
##2B3E71	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274473

Deuteranopia (green-blind)

#1E3D70

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2b3e71;
/* rgb */ color: rgb(43, 62, 113);
/* oklch */ color: oklch(37.5% 0.091 266.7);

Tailwind

colors: {
  custom: {
    50: '#6b729a',
    500: '#2b3e71',
    950: '#000000',
  },
}

SCSS

$custom: #2b3e71;
$custom-light: #6b729a;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3e71",
  "rgb": {
    "r": 43,
    "g": 62,
    "b": 113
  },
  "hsl": {
    "h": 223.714,
    "s": 44.872,
    "l": 30.588
  },
  "oklch": {
    "l": 0.37544,
    "c": 0.09072,
    "h": 266.7
  },
  "luminance": 0.05151
}

Semantic roles & 50–950 ramp

primary

#2B3E71

secondary

#A38E55

accent

#B153D5

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #2B3E71

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

Preview Lab → · Contrast checker → · Palette generator →