#4171BE#4171BE

#4171BE is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.3% C 0.131 H 259.4°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#4171BE
RGB	rgb(65, 113, 190)
HSL	hsl(217, 49%, 50%)
HSV	hsv(217, 66%, 75%)
CMYK	cmyk(65.8%, 40.5%, 0%, 25.5%)
CIE-LAB	lab(47.82, 8.71, -45.30)
CIE-LCH	lch(47.82, 46.13, 280.88°)
OKLab	oklab(55.27% -0.024 -0.129)
OKLCH	oklch(55.27% 0.131 259.4)
XYZ	xyz(17.3760, 16.6501, 51.0033)
Luminance	0.1665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4171BE #BE8E41

analogous

#41B0BE #4171BE #4F41BE

triadic

#4171BE #BE4171 #71BE41

tetradic

#4171BE #BE41B0 #BE8E41 #41BE4F

square

#4171BE #BE41B0 #BE8E41 #41BE4F

split-complementary

#4171BE #BE4F41 #B0BE41

monochromatic

#223B63 #315690 #4171BE #6F93CE #9CB5DD

Accessibility & contrast

On white

4.85

#4171BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#4171BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4171BE

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4171BE	#FFFFFF	#000000	##FFFFFF
##4171BE	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E78C1

Deuteranopia (green-blind)

#3B6CBC

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4171be;
/* rgb */ color: rgb(65, 113, 190);
/* oklch */ color: oklch(55.3% 0.131 259.4);

Tailwind

colors: {
  custom: {
    50: '#8299d2',
    500: '#4171be',
    950: '#000000',
  },
}

SCSS

$custom: #4171be;
$custom-light: #8299d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4171be",
  "rgb": {
    "r": 65,
    "g": 113,
    "b": 190
  },
  "hsl": {
    "h": 216.96,
    "s": 49.02,
    "l": 50
  },
  "oklch": {
    "l": 0.5527,
    "c": 0.13125,
    "h": 259.4
  },
  "luminance": 0.16652
}

Semantic roles & 50–950 ramp

primary

#4171BE

secondary

#C9B491

accent

#A44FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4171BE

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

Preview Lab → · Contrast checker → · Palette generator →