#4170BC#4170BC

#4170BC is a mid, vivid blue. Relative luminance 0.163; OKLCH L 54.9% C 0.130 H 259.6°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#4170BC
RGB	rgb(65, 112, 188)
HSL	hsl(217, 49%, 50%)
HSV	hsv(217, 65%, 74%)
CMYK	cmyk(65.4%, 40.4%, 0%, 26.3%)
CIE-LAB	lab(47.42, 8.62, -44.77)
CIE-LCH	lch(47.42, 45.60, 280.90°)
OKLab	oklab(54.93% -0.0235 -0.1275)
OKLCH	oklch(54.93% 0.13 259.6)
XYZ	xyz(17.0480, 16.3414, 49.8230)
Luminance	0.1634 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4170BC #BC8D41

analogous

#41AEBC #4170BC #4F41BC

triadic

#4170BC #BC4170 #70BC41

tetradic

#4170BC #BC41AE #BC8D41 #41BC4F

square

#4170BC #BC41AE #BC8D41 #41BC4F

split-complementary

#4170BC #BC4F41 #AEBC41

monochromatic

#223A61 #31558F #4170BC #6E92CD #9BB4DC

Accessibility & contrast

On white

4.92

#4170BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#4170BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4170BC

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4170BC	#FFFFFF	#000000	##FFFFFF
##4170BC	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E77BF

Deuteranopia (green-blind)

#3B6BBA

Tritanopia (blue-blind)

#00818D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #4170bc;
/* rgb */ color: rgb(65, 112, 188);
/* oklch */ color: oklch(54.9% 0.130 259.6);

Tailwind

colors: {
  custom: {
    50: '#8298d0',
    500: '#4170bc',
    950: '#000000',
  },
}

SCSS

$custom: #4170bc;
$custom-light: #8298d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4170bc",
  "rgb": {
    "r": 65,
    "g": 112,
    "b": 188
  },
  "hsl": {
    "h": 217.073,
    "s": 48.617,
    "l": 49.608
  },
  "oklch": {
    "l": 0.54926,
    "c": 0.12965,
    "h": 259.6
  },
  "luminance": 0.16343
}

Semantic roles & 50–950 ramp

primary

#4170BC

secondary

#C9B390

accent

#A450D8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #4170BC

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

Preview Lab → · Contrast checker → · Palette generator →