#3137E9#3137E9

#3137E9 is a mid, highly saturated blue. Relative luminance 0.093; OKLCH L 47.7% C 0.256 H 270.1°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX#3137E9
RGBrgb(49, 55, 233)
HSLhsl(238, 81%, 55%)
HSVhsv(238, 79%, 91%)
CMYKcmyk(79%, 76.4%, 0%, 8.6%)
CIE-LABlab(36.49, 57.30, -88.41)
CIE-LCHlch(36.49, 105.35, 302.95°)
OKLaboklab(47.7% 0.0004 -0.2561)
OKLCHoklch(47.7% 0.256 270.1)
XYZxyz(17.3358, 9.2665, 77.9500)
Luminance0.0927 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3137E9 #E9E331
analogous
#3193E9 #3137E9 #8731E9
triadic
#3137E9 #E93137 #37E931
tetradic
#3137E9 #E93193 #E9E331 #31E987
square
#3137E9 #E93193 #E9E331 #31E987
split-complementary
#3137E9 #E98731 #93E931
monochromatic
#0F1490 #151BC7 #3137E9 #686DEF #A0A2F5

Accessibility & contrast

On white

7.36
#3137E9 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.85
#3137E9 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3137E9
7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3137E9#FFFFFF#000000##FFFFFF
##3137E91.007.362.857.36
#FFFFFF7.361.0021.001.00
#0000002.8521.001.0021.00
##FFFFFF7.361.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005FEE
Deuteranopia (green-blind)
#004CE6
Tritanopia (blue-blind)
#006D8F
Achromatopsia (no color)
#565656

Design tokens & code

CSS
--color: #3137e9;
/* rgb */ color: rgb(49, 55, 233);
/* oklch */ color: oklch(47.7% 0.256 270.1);
Tailwind
colors: {
  custom: {
    50: '#8971f2',
    500: '#3137e9',
    950: '#000000',
  },
}
SCSS
$custom: #3137e9;
$custom-light: #8971f2;
$custom-dark: #000000;
JSON
{
  "hex": "#3137e9",
  "rgb": {
    "r": 49,
    "g": 55,
    "b": 233
  },
  "hsl": {
    "h": 238.043,
    "s": 80.702,
    "l": 55.294
  },
  "oklch": {
    "l": 0.47697,
    "c": 0.25607,
    "h": 270.1
  },
  "luminance": 0.09269
}

Semantic roles & 50–950 ramp

primary
#3137E9
secondary
#E1DF94
accent
#F131F7
background
#F9F7FF
surface
#F2EDFE
border
#CCC8D6
text
#0E0817
muted
#7E7B85

Preview Lab

Preview with #3137E9

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

Preview Lab → · Contrast checker → · Palette generator →

#3137E9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva