#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
RGB	rgb(65, 121, 207)
HSL	hsl(216, 60%, 53%)
HSV	hsv(216, 69%, 81%)
CMYK	cmyk(68.6%, 41.5%, 0%, 18.8%)
CIE-LAB	lab(51.04, 9.80, -49.90)
CIE-LCH	lch(51.04, 50.85, 281.11°)
OKLab	oklab(58.08% -0.0283 -0.1424)
OKLCH	oklch(58.08% 0.145 258.8)
XYZ	xyz(20.2758, 19.3015, 61.6764)
Luminance	0.1930 (WCAG relative)
Temperature	cool
Family	blue

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
##4179CF	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

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 →