#2639B0#2639B0

#2639B0 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.188 H 268.9°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX#2639B0
RGBrgb(38, 57, 176)
HSLhsl(232, 64%, 42%)
HSVhsv(232, 78%, 69%)
CMYKcmyk(78.4%, 67.6%, 0%, 31%)
CIE-LABlab(30.57, 36.05, -65.04)
CIE-LCHlch(30.57, 74.36, 299.00°)
OKLaboklab(41.59% -0.0035 -0.1883)
OKLCHoklch(41.59% 0.188 268.9)
XYZxyz(10.0962, 6.4718, 41.7829)
Luminance0.0647 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2639B0 #B09D26
analogous
#267EB0 #2639B0 #5826B0
triadic
#2639B0 #B02639 #39B026
tetradic
#2639B0 #B0267E #B09D26 #26B058
square
#2639B0 #B0267E #B09D26 #26B058
split-complementary
#2639B0 #B05826 #7EB026
monochromatic
#10184B #1B297E #2639B0 #3E53D5 #7080E0

Accessibility & contrast

On white

9.15
#2639B0 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.29
#2639B0 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2639B0
9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2639B0#FFFFFF#000000##FFFFFF
##2639B01.009.152.299.15
#FFFFFF9.151.0021.001.00
#0000002.2921.001.0021.00
##FFFFFF9.151.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004FB4
Deuteranopia (green-blind)
#0041AE
Tritanopia (blue-blind)
#00596F
Achromatopsia (no color)
#484848

Design tokens & code

CSS
--color: #2639b0;
/* rgb */ color: rgb(38, 57, 176);
/* oklch */ color: oklch(41.6% 0.188 268.9);
Tailwind
colors: {
  custom: {
    50: '#786fc9',
    500: '#2639b0',
    950: '#000000',
  },
}
SCSS
$custom: #2639b0;
$custom-light: #786fc9;
$custom-dark: #000000;
JSON
{
  "hex": "#2639b0",
  "rgb": {
    "r": 38,
    "g": 57,
    "b": 176
  },
  "hsl": {
    "h": 231.739,
    "s": 64.486,
    "l": 41.961
  },
  "oklch": {
    "l": 0.41593,
    "c": 0.18832,
    "h": 268.9
  },
  "luminance": 0.06473
}

Semantic roles & 50–950 ramp

primary
#2639B0
secondary
#C7BA6B
accent
#D040E7
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0A0713
muted
#7C7A82

Preview Lab

Preview with #2639B0

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

Preview Lab → · Contrast checker → · Palette generator →

#2639B0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva