#2B3DB9#2B3DB9

#2B3DB9 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.4% C 0.194 H 269.5°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX#2B3DB9
RGBrgb(43, 61, 185)
HSLhsl(232, 62%, 45%)
HSVhsv(232, 77%, 73%)
CMYKcmyk(76.8%, 67%, 0%, 27.5%)
CIE-LABlab(32.60, 37.25, -67.05)
CIE-LCHlch(32.60, 76.70, 299.06°)
OKLaboklab(43.39% -0.0016 -0.194)
OKLCHoklch(43.39% 0.194 269.5)
XYZxyz(11.4190, 7.3526, 46.7069)
Luminance0.0735 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2B3DB9 #B9A72B
analogous
#2B84B9 #2B3DB9 #602BB9
triadic
#2B3DB9 #B92B3D #3DB92B
tetradic
#2B3DB9 #B92B84 #B9A72B #2BB960
square
#2B3DB9 #B92B84 #B9A72B #2BB960
split-complementary
#2B3DB9 #B9602B #84B92B
monochromatic
#141C56 #1F2D87 #2B3DB9 #4C5DD5 #7E8AE1

Accessibility & contrast

On white

8.50
#2B3DB9 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.47
#2B3DB9 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3DB9
8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2B3DB9#FFFFFF#000000##FFFFFF
##2B3DB91.008.502.478.50
#FFFFFF8.501.0021.001.00
#0000002.4721.001.0021.00
##FFFFFF8.501.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0054BD
Deuteranopia (green-blind)
#0046B7
Tritanopia (blue-blind)
#005E76
Achromatopsia (no color)
#4D4D4D

Design tokens & code

CSS
--color: #2b3db9;
/* rgb */ color: rgb(43, 61, 185);
/* oklch */ color: oklch(43.4% 0.194 269.5);
Tailwind
colors: {
  custom: {
    50: '#7b72cf',
    500: '#2b3db9',
    950: '#000000',
  },
}
SCSS
$custom: #2b3db9;
$custom-light: #7b72cf;
$custom-dark: #000000;
JSON
{
  "hex": "#2b3db9",
  "rgb": {
    "r": 43,
    "g": 61,
    "b": 185
  },
  "hsl": {
    "h": 232.394,
    "s": 62.281,
    "l": 44.706
  },
  "oklch": {
    "l": 0.43389,
    "c": 0.19405,
    "h": 269.5
  },
  "luminance": 0.07354
}

Semantic roles & 50–950 ramp

primary
#2B3DB9
secondary
#C9BF76
accent
#D142E5
background
#F8F6FC
surface
#EFECF9
border
#CAC7D2
text
#0B0814
muted
#7C7B82

Preview Lab

Preview with #2B3DB9

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

Preview Lab → · Contrast checker → · Palette generator →

#2B3DB9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva