#4171CC#4171CC

#4171CC is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.2% C 0.150 H 261.8°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#4171CC
RGB	rgb(65, 113, 204)
HSL	hsl(219, 58%, 53%)
HSV	hsv(219, 68%, 80%)
CMYK	cmyk(68.1%, 44.6%, 0%, 20%)
CIE-LAB	lab(48.63, 13.69, -52.04)
CIE-LCH	lch(48.63, 53.82, 284.74°)
OKLab	oklab(56.16% -0.0213 -0.1488)
OKLCH	oklch(56.16% 0.15 261.8)
XYZ	xyz(18.9803, 17.2918, 59.4524)
Luminance	0.1729 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4171CC #CC9C41

analogous

#41B6CC #4171CC #5741CC

triadic

#4171CC #CC4171 #71CC41

tetradic

#4171CC #CC41B6 #CC9C41 #41CC57

square

#4171CC #CC41B6 #CC9C41 #41CC57

split-complementary

#4171CC #CC5741 #B6CC41

monochromatic

#1F3C74 #2C55A4 #4171CC #7195D9 #A1B9E6

Accessibility & contrast

On white

4.71

#4171CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#4171CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4171CC

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4171CC	#FFFFFF	#000000	##FFFFFF
##4171CC	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#447ACF

Deuteranopia (green-blind)

#2B6ECA

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4171cc;
/* rgb */ color: rgb(65, 113, 204);
/* oklch */ color: oklch(56.2% 0.150 261.8);

Tailwind

colors: {
  custom: {
    50: '#8599dc',
    500: '#4171cc',
    950: '#000000',
  },
}

SCSS

$custom: #4171cc;
$custom-light: #8599dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4171cc",
  "rgb": {
    "r": 65,
    "g": 113,
    "b": 204
  },
  "hsl": {
    "h": 219.281,
    "s": 57.676,
    "l": 52.745
  },
  "oklch": {
    "l": 0.56157,
    "c": 0.15036,
    "h": 261.8
  },
  "luminance": 0.17294
}

Semantic roles & 50–950 ramp

primary

#4171CC

secondary

#D3BE96

accent

#AC47E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4171CC

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

Preview Lab → · Contrast checker → · Palette generator →