#4171D8#4171D8

#4171D8 is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.0% C 0.167 H 263.3°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4171D8
RGB	rgb(65, 113, 216)
HSL	hsl(221, 66%, 55%)
HSV	hsv(221, 70%, 85%)
CMYK	cmyk(69.9%, 47.7%, 0%, 15.3%)
CIE-LAB	lab(49.36, 18.00, -57.69)
CIE-LCH	lch(49.36, 60.44, 287.33°)
OKLab	oklab(56.96% -0.0194 -0.1655)
OKLCH	oklch(56.96% 0.167 263.3)
XYZ	xyz(20.4754, 17.8898, 67.3264)
Luminance	0.1789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4171D8 #D8A841

analogous

#41BDD8 #4171D8 #5C41D8

triadic

#4171D8 #D84171 #71D841

tetradic

#4171D8 #D841BD #D8A841 #41D85C

square

#4171D8 #D841BD #D8A841 #41D85C

split-complementary

#4171D8 #D85C41 #BDD841

monochromatic

#1B3C84 #2554B6 #4171D8 #7497E2 #A7BDED

Accessibility & contrast

On white

4.59

#4171D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#4171D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4171D8

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4171D8	#FFFFFF	#000000	##FFFFFF
##4171D8	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#397DDC

Deuteranopia (green-blind)

#106FD6

Tritanopia (blue-blind)

#00899A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4171d8;
/* rgb */ color: rgb(65, 113, 216);
/* oklch */ color: oklch(57.0% 0.167 263.3);

Tailwind

colors: {
  custom: {
    50: '#8799e5',
    500: '#4171d8',
    950: '#000000',
  },
}

SCSS

$custom: #4171d8;
$custom-light: #8799e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4171d8",
  "rgb": {
    "r": 65,
    "g": 113,
    "b": 216
  },
  "hsl": {
    "h": 220.927,
    "s": 65.939,
    "l": 55.098
  },
  "oklch": {
    "l": 0.5696,
    "c": 0.1666,
    "h": 263.3
  },
  "luminance": 0.17892
}

Semantic roles & 50–950 ramp

primary

#4171D8

secondary

#DAC69B

accent

#B33FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4171D8

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

Preview Lab → · Contrast checker → · Palette generator →