#3037BF#3037BF

#3037BF is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.3% C 0.207 H 271.6°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX#3037BF
RGBrgb(48, 55, 191)
HSLhsl(237, 60%, 47%)
HSVhsv(237, 75%, 75%)
CMYKcmyk(74.9%, 71.2%, 0%, 25.1%)
CIE-LABlab(32.08, 43.49, -71.43)
CIE-LCHlch(32.08, 83.62, 301.34°)
OKLaboklab(43.26% 0.006 -0.2067)
OKLCHoklch(43.26% 0.207 271.6)
XYZxyz(11.9859, 7.1211, 50.0229)
Luminance0.0712 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3037BF #BFB830
analogous
#307FBF #3037BF #7130BF
triadic
#3037BF #BF3037 #37BF30
tetradic
#3037BF #BF307F #BFB830 #30BF71
square
#3037BF #BF307F #BFB830 #30BF71
split-complementary
#3037BF #BF7130 #7FBF30
monochromatic
#171B5D #24298E #3037BF #575DD5 #888DE1

Accessibility & contrast

On white

8.66
#3037BF on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.42
#3037BF on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3037BF
8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3037BF#FFFFFF#000000##FFFFFF
##3037BF1.008.662.428.66
#FFFFFF8.661.0021.001.00
#0000002.4221.001.0021.00
##FFFFFF8.661.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0052C3
Deuteranopia (green-blind)
#0045BD
Tritanopia (blue-blind)
#005D77
Achromatopsia (no color)
#4B4B4B

Design tokens & code

CSS
--color: #3037bf;
/* rgb */ color: rgb(48, 55, 191);
/* oklch */ color: oklch(43.3% 0.207 271.6);
Tailwind
colors: {
  custom: {
    50: '#7f6fd4',
    500: '#3037bf',
    950: '#000000',
  },
}
SCSS
$custom: #3037bf;
$custom-light: #7f6fd4;
$custom-dark: #000000;
JSON
{
  "hex": "#3037bf",
  "rgb": {
    "r": 48,
    "g": 55,
    "b": 191
  },
  "hsl": {
    "h": 237.063,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4326,
    "c": 0.20681,
    "h": 271.6
  },
  "luminance": 0.07122
}

Semantic roles & 50–950 ramp

primary
#3037BF
secondary
#CBC780
accent
#DB45E3
background
#F8F6FD
surface
#F0ECFA
border
#CBC7D3
text
#0C0714
muted
#7D7A83

Preview Lab

Preview with #3037BF

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

Preview Lab → · Contrast checker → · Palette generator →

#3037BF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva