#2537AE#2537AE

#2537AE is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.0% C 0.188 H 269.0°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX#2537AE
RGBrgb(37, 55, 174)
HSLhsl(232, 65%, 41%)
HSVhsv(232, 79%, 68%)
CMYKcmyk(78.7%, 68.4%, 0%, 31.8%)
CIE-LABlab(29.86, 36.50, -65.01)
CIE-LCHlch(29.86, 74.56, 299.31°)
OKLaboklab(41.01% -0.0033 -0.1882)
OKLCHoklch(41.01% 0.188 269)
XYZxyz(9.7665, 6.1806, 40.7144)
Luminance0.0618 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2537AE #AE9C25
analogous
#257CAE #2537AE #5825AE
triadic
#2537AE #AE2537 #37AE25
tetradic
#2537AE #AE257C #AE9C25 #25AE58
square
#2537AE #AE257C #AE9C25 #25AE58
split-complementary
#2537AE #AE5825 #7CAE25
monochromatic
#101749 #1A277C #2537AE #3B4FD5 #6D7CE0

Accessibility & contrast

On white

9.39
#2537AE on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.24
#2537AE on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2537AE
9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2537AE#FFFFFF#000000##FFFFFF
##2537AE1.009.392.249.39
#FFFFFF9.391.0021.001.00
#0000002.2421.001.0021.00
##FFFFFF9.391.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004DB2
Deuteranopia (green-blind)
#0040AC
Tritanopia (blue-blind)
#00586E
Achromatopsia (no color)
#464646

Design tokens & code

CSS
--color: #2537ae;
/* rgb */ color: rgb(37, 55, 174);
/* oklch */ color: oklch(41.0% 0.188 269.0);
Tailwind
colors: {
  custom: {
    50: '#776ec7',
    500: '#2537ae',
    950: '#000000',
  },
}
SCSS
$custom: #2537ae;
$custom-light: #776ec7;
$custom-dark: #000000;
JSON
{
  "hex": "#2537ae",
  "rgb": {
    "r": 37,
    "g": 55,
    "b": 174
  },
  "hsl": {
    "h": 232.117,
    "s": 64.929,
    "l": 41.373
  },
  "oklch": {
    "l": 0.41007,
    "c": 0.18827,
    "h": 269
  },
  "luminance": 0.06182
}

Semantic roles & 50–950 ramp

primary
#2537AE
secondary
#C6BA68
accent
#D240E8
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0A0713
muted
#7C7A82

Preview Lab

Preview with #2537AE

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

Preview Lab → · Contrast checker → · Palette generator →

#2537AE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva