#4179CF#4179CF

#4179CF is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.1% C 0.145 H 258.8°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX#4179CF
RGBrgb(65, 121, 207)
HSLhsl(216, 60%, 53%)
HSVhsv(216, 69%, 81%)
CMYKcmyk(68.6%, 41.5%, 0%, 18.8%)
CIE-LABlab(51.04, 9.80, -49.90)
CIE-LCHlch(51.04, 50.85, 281.11°)
OKLaboklab(58.08% -0.0283 -0.1424)
OKLCHoklch(58.08% 0.145 258.8)
XYZxyz(20.2758, 19.3015, 61.6764)
Luminance0.1930 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4179CF #CF9741
analogous
#41C0CF #4179CF #5041CF
triadic
#4179CF #CF4179 #79CF41
tetradic
#4179CF #CF41C0 #CF9741 #41CF50
square
#4179CF #CF41C0 #CF9741 #41CF50
split-complementary
#4179CF #CF5041 #C0CF41
monochromatic
#1E4177 #2B5CA8 #4179CF #729BDB #A3BEE8

Accessibility & contrast

On white

4.32
#4179CF on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.86
#4179CF on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4179CF
4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4179CF#FFFFFF#000000##000000
##4179CF1.004.324.864.86
#FFFFFF4.321.0021.0021.00
#0000004.8621.001.001.00
##0000004.8621.001.001.00

Color blindness preview

Protanopia (red-blind)
#5181D2
Deuteranopia (green-blind)
#3A73CD
Tritanopia (blue-blind)
#008D9A
Achromatopsia (no color)
#7A7A7A

Design tokens & code

CSS
--color: #4179cf;
/* rgb */ color: rgb(65, 121, 207);
/* oklch */ color: oklch(58.1% 0.145 258.8);
Tailwind
colors: {
  custom: {
    50: '#859fde',
    500: '#4179cf',
    950: '#000000',
  },
}
SCSS
$custom: #4179cf;
$custom-light: #859fde;
$custom-dark: #000000;
JSON
{
  "hex": "#4179cf",
  "rgb": {
    "r": 65,
    "g": 121,
    "b": 207
  },
  "hsl": {
    "h": 216.338,
    "s": 59.664,
    "l": 53.333
  },
  "oklch": {
    "l": 0.58077,
    "c": 0.1452,
    "h": 258.8
  },
  "luminance": 0.19304
}

Semantic roles & 50–950 ramp

primary
#4179CF
secondary
#D4BC97
accent
#A545E3
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83

Preview Lab

Preview with #4179CF

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

Preview Lab → · Contrast checker → · Palette generator →

#4179CF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva