#2733B0#2733B0

#2733B0 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.6% C 0.195 H 270.1°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX#2733B0
RGBrgb(39, 51, 176)
HSLhsl(235, 64%, 42%)
HSVhsv(235, 78%, 69%)
CMYKcmyk(77.8%, 71%, 0%, 31%)
CIE-LABlab(29.24, 39.88, -67.23)
CIE-LCHlch(29.24, 78.17, 300.68°)
OKLaboklab(40.64% 0.0004 -0.1947)
OKLCHoklch(40.64% 0.195 270.1)
XYZxyz(9.8543, 5.9325, 41.6916)
Luminance0.0593 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2733B0 #B0A427
analogous
#2777B0 #2733B0 #6027B0
triadic
#2733B0 #B02733 #33B027
tetradic
#2733B0 #B02777 #B0A427 #27B060
square
#2733B0 #B02777 #B0A427 #27B060
split-complementary
#2733B0 #B06027 #77B027
monochromatic
#11164C #1C247E #2733B0 #404DD5 #727BE0

Accessibility & contrast

On white

9.60
#2733B0 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.19
#2733B0 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2733B0
9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2733B0#FFFFFF#000000##FFFFFF
##2733B01.009.602.199.60
#FFFFFF9.601.0021.001.00
#0000002.1921.001.0021.00
##FFFFFF9.601.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004CB4
Deuteranopia (green-blind)
#003EAE
Tritanopia (blue-blind)
#00566E
Achromatopsia (no color)
#454545

Design tokens & code

CSS
--color: #2733b0;
/* rgb */ color: rgb(39, 51, 176);
/* oklch */ color: oklch(40.6% 0.195 270.1);
Tailwind
colors: {
  custom: {
    50: '#796bc9',
    500: '#2733b0',
    950: '#000000',
  },
}
SCSS
$custom: #2733b0;
$custom-light: #796bc9;
$custom-dark: #000000;
JSON
{
  "hex": "#2733b0",
  "rgb": {
    "r": 39,
    "g": 51,
    "b": 176
  },
  "hsl": {
    "h": 234.745,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.40642,
    "c": 0.19467,
    "h": 270.1
  },
  "luminance": 0.05934
}

Semantic roles & 50–950 ramp

primary
#2733B0
secondary
#C7BF6C
accent
#D841E7
background
#F8F6FC
surface
#EFEBF8
border
#CAC6D1
text
#0B0713
muted
#7C7A82

Preview Lab

Preview with #2733B0

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

Preview Lab → · Contrast checker → · Palette generator →

#2733B0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva