#2533A3#2533A3

#2533A3 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.2% C 0.179 H 269.9°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX#2533A3
RGBrgb(37, 51, 163)
HSLhsl(233, 63%, 39%)
HSVhsv(233, 77%, 64%)
CMYKcmyk(77.3%, 68.7%, 0%, 36.1%)
CIE-LABlab(27.86, 35.04, -61.69)
CIE-LCHlch(27.86, 70.95, 299.60°)
OKLaboklab(39.23% -0.0002 -0.1786)
OKLCHoklch(39.23% 0.179 269.9)
XYZxyz(8.5554, 5.4044, 35.2355)
Luminance0.0541 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2533A3 #A39525
analogous
#2572A3 #2533A3 #5625A3
triadic
#2533A3 #A32533 #33A325
tetradic
#2533A3 #A32572 #A39525 #25A356
square
#2533A3 #A32572 #A39525 #25A356
split-complementary
#2533A3 #A35625 #72A325
monochromatic
#0E143F #1A2371 #2533A3 #3446D1 #6673DC

Accessibility & contrast

On white

10.09
#2533A3 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.08
#2533A3 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2533A3
10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2533A3#FFFFFF#000000##FFFFFF
##2533A31.0010.092.0810.09
#FFFFFF10.091.0021.001.00
#0000002.0821.001.0021.00
##FFFFFF10.091.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0048A6
Deuteranopia (green-blind)
#003CA1
Tritanopia (blue-blind)
#005267
Achromatopsia (no color)
#424242

Design tokens & code

CSS
--color: #2533a3;
/* rgb */ color: rgb(37, 51, 163);
/* oklch */ color: oklch(39.2% 0.179 269.9);
Tailwind
colors: {
  custom: {
    50: '#756bbf',
    500: '#2533a3',
    950: '#000000',
  },
}
SCSS
$custom: #2533a3;
$custom-light: #756bbf;
$custom-dark: #000000;
JSON
{
  "hex": "#2533a3",
  "rgb": {
    "r": 37,
    "g": 51,
    "b": 163
  },
  "hsl": {
    "h": 233.333,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.39226,
    "c": 0.17857,
    "h": 269.9
  },
  "luminance": 0.05405
}

Semantic roles & 50–950 ramp

primary
#2533A3
secondary
#C2B762
accent
#D442E6
background
#F7F6FB
surface
#EEEBF7
border
#C9C6D0
text
#0A0612
muted
#7C7A81

Preview Lab

Preview with #2533A3

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

Preview Lab → · Contrast checker → · Palette generator →

#2533A3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva