#4170BF#4170BF

#4170BF is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.1% C 0.134 H 260.2°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#4170BF
RGB	rgb(65, 112, 191)
HSL	hsl(218, 50%, 50%)
HSV	hsv(218, 66%, 75%)
CMYK	cmyk(66%, 41.4%, 0%, 25.1%)
CIE-LAB	lab(47.59, 9.68, -46.24)
CIE-LCH	lch(47.59, 47.24, 281.83°)
OKLab	oklab(55.11% -0.0228 -0.1318)
OKLCH	oklch(55.11% 0.134 260.2)
XYZ	xyz(17.3748, 16.4721, 51.5439)
Luminance	0.1647 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4170BF #BF9041

analogous

#41AFBF #4170BF #5141BF

triadic

#4170BF #BF4170 #70BF41

tetradic

#4170BF #BF41AF #BF9041 #41BF51

square

#4170BF #BF41AF #BF9041 #41BF51

split-complementary

#4170BF #BF5141 #AFBF41

monochromatic

#223A64 #315592 #4170BF #6F92CE #9DB5DE

Accessibility & contrast

On white

4.89

#4170BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#4170BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4170BF

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4170BF	#FFFFFF	#000000	##FFFFFF
##4170BF	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C77C2

Deuteranopia (green-blind)

#386BBD

Tritanopia (blue-blind)

#00828E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4170bf;
/* rgb */ color: rgb(65, 112, 191);
/* oklch */ color: oklch(55.1% 0.134 260.2);

Tailwind

colors: {
  custom: {
    50: '#8298d3',
    500: '#4170bf',
    950: '#000000',
  },
}

SCSS

$custom: #4170bf;
$custom-light: #8298d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4170bf",
  "rgb": {
    "r": 65,
    "g": 112,
    "b": 191
  },
  "hsl": {
    "h": 217.619,
    "s": 49.606,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55111,
    "c": 0.13376,
    "h": 260.2
  },
  "luminance": 0.16474
}

Semantic roles & 50–950 ramp

primary

#4170BF

secondary

#CAB592

accent

#A54FD9

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #4170BF

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

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