#2533BC#2533BC

#2533BC is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 41.8% C 0.210 H 269.2°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX#2533BC
RGBrgb(37, 51, 188)
HSLhsl(234, 67%, 44%)
HSVhsv(234, 80%, 74%)
CMYKcmyk(80.3%, 72.9%, 0%, 26.3%)
CIE-LABlab(30.38, 43.91, -72.49)
CIE-LCHlch(30.38, 84.75, 301.21°)
OKLaboklab(41.8% -0.0031 -0.21)
OKLCHoklch(41.8% 0.21 269.2)
XYZxyz(11.0208, 6.3905, 48.2199)
Luminance0.0639 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2533BC #BCAE25
analogous
#257FBC #2533BC #6325BC
triadic
#2533BC #BC2533 #33BC25
tetradic
#2533BC #BC257F #BCAE25 #25BC63
square
#2533BC #BC257F #BCAE25 #25BC63
split-complementary
#2533BC #BC6325 #7FBC25
monochromatic
#111756 #1B2589 #2533BC #4452DA #7781E4

Accessibility & contrast

On white

9.22
#2533BC on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.28
#2533BC on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2533BC
9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2533BC#FFFFFF#000000##FFFFFF
##2533BC1.009.222.289.22
#FFFFFF9.221.0021.001.00
#0000002.2821.001.0021.00
##FFFFFF9.221.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004FC0
Deuteranopia (green-blind)
#0040BA
Tritanopia (blue-blind)
#005B74
Achromatopsia (no color)
#484848

Design tokens & code

CSS
--color: #2533bc;
/* rgb */ color: rgb(37, 51, 188);
/* oklch */ color: oklch(41.8% 0.210 269.2);
Tailwind
colors: {
  custom: {
    50: '#7b6cd1',
    500: '#2533bc',
    950: '#000000',
  },
}
SCSS
$custom: #2533bc;
$custom-light: #7b6cd1;
$custom-dark: #000000;
JSON
{
  "hex": "#2533bc",
  "rgb": {
    "r": 37,
    "g": 51,
    "b": 188
  },
  "hsl": {
    "h": 234.437,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.41798,
    "c": 0.21003,
    "h": 269.2
  },
  "luminance": 0.06392
}

Semantic roles & 50–950 ramp

primary
#2533BC
secondary
#CCC371
accent
#DA3EEA
background
#F8F6FD
surface
#EFEBFA
border
#CAC6D3
text
#0B0714
muted
#7C7A83

Preview Lab

Preview with #2533BC

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

Preview Lab → · Contrast checker → · Palette generator →

#2533BC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva