#2B3F73#2B3F73

#2B3F73 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.9% C 0.092 H 266.3°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX#2B3F73
RGBrgb(43, 63, 115)
HSLhsl(223, 46%, 31%)
HSVhsv(223, 63%, 45%)
CMYKcmyk(62.6%, 45.2%, 0%, 54.9%)
CIE-LABlab(27.59, 9.72, -32.40)
CIE-LCHlch(27.59, 33.82, 286.71°)
OKLaboklab(37.91% -0.006 -0.0923)
OKLCHoklch(37.91% 0.092 266.3)
XYZxyz(5.8672, 5.3059, 16.9313)
Luminance0.0531 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2B3F73 #735F2B
analogous
#2B6373 #2B3F73 #3B2B73
triadic
#2B3F73 #732B3F #3F732B
tetradic
#2B3F73 #732B63 #735F2B #2B733B
square
#2B3F73 #732B63 #735F2B #2B733B
split-complementary
#2B3F73 #733B2B #63732B
monochromatic
#0A0E1A #1A2746 #2B3F73 #3C57A0 #5875C1

Accessibility & contrast

On white

10.19
#2B3F73 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.06
#2B3F73 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3F73
10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2B3F73#FFFFFF#000000##FFFFFF
##2B3F731.0010.192.0610.19
#FFFFFF10.191.0021.001.00
#0000002.0621.001.0021.00
##FFFFFF10.191.0021.001.00

Color blindness preview

Protanopia (red-blind)
#284575
Deuteranopia (green-blind)
#1D3E72
Tritanopia (blue-blind)
#004B53
Achromatopsia (no color)
#414141

Design tokens & code

CSS
--color: #2b3f73;
/* rgb */ color: rgb(43, 63, 115);
/* oklch */ color: oklch(37.9% 0.092 266.3);
Tailwind
colors: {
  custom: {
    50: '#6b739b',
    500: '#2b3f73',
    950: '#000000',
  },
}
SCSS
$custom: #2b3f73;
$custom-light: #6b739b;
$custom-dark: #000000;
JSON
{
  "hex": "#2b3f73",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 115
  },
  "hsl": {
    "h": 223.333,
    "s": 45.57,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37914,
    "c": 0.09247,
    "h": 266.3
  },
  "luminance": 0.05306
}

Semantic roles & 50–950 ramp

primary
#2B3F73
secondary
#A58F55
accent
#B153D5
background
#F6F6F9
surface
#ECECF2
border
#C7C7CC
text
#07080E
muted
#7A7B7E

Preview Lab

Preview with #2B3F73

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

Preview Lab → · Contrast checker → · Palette generator →

#2B3F73 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva