#4171BD#4171BD

#4171BD is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.2% C 0.130 H 259.2°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#4171BD
RGB	rgb(65, 113, 189)
HSL	hsl(217, 49%, 50%)
HSV	hsv(217, 66%, 74%)
CMYK	cmyk(65.6%, 40.2%, 0%, 25.9%)
CIE-LAB	lab(47.76, 8.35, -44.81)
CIE-LCH	lch(47.76, 45.58, 280.56°)
OKLab	oklab(55.21% -0.0243 -0.1276)
OKLCH	oklch(55.21% 0.13 259.2)
XYZ	xyz(17.2671, 16.6065, 50.4296)
Luminance	0.1661 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4171BD #BD8D41

analogous

#41AFBD #4171BD #4F41BD

triadic

#4171BD #BD4171 #71BD41

tetradic

#4171BD #BD41AF #BD8D41 #41BD4F

square

#4171BD #BD41AF #BD8D41 #41BD4F

split-complementary

#4171BD #BD4F41 #AFBD41

monochromatic

#223B62 #31568F #4171BD #6E93CD #9CB5DD

Accessibility & contrast

On white

4.86

#4171BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#4171BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4171BD

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4171BD	#FFFFFF	#000000	##FFFFFF
##4171BD	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F78C0

Deuteranopia (green-blind)

#3C6CBB

Tritanopia (blue-blind)

#00828E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4171bd;
/* rgb */ color: rgb(65, 113, 189);
/* oklch */ color: oklch(55.2% 0.130 259.2);

Tailwind

colors: {
  custom: {
    50: '#8299d1',
    500: '#4171bd',
    950: '#000000',
  },
}

SCSS

$custom: #4171bd;
$custom-light: #8299d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4171bd",
  "rgb": {
    "r": 65,
    "g": 113,
    "b": 189
  },
  "hsl": {
    "h": 216.774,
    "s": 48.819,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55209,
    "c": 0.12989,
    "h": 259.2
  },
  "luminance": 0.16608
}

Semantic roles & 50–950 ramp

primary

#4171BD

secondary

#C9B391

accent

#A34FD8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #4171BD

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

Preview Lab → · Contrast checker → · Palette generator →