#4170CB#4170CB

#4170CB is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.9% C 0.150 H 262.1°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#4170CB
RGB	rgb(65, 112, 203)
HSL	hsl(220, 57%, 53%)
HSV	hsv(220, 68%, 80%)
CMYK	cmyk(68%, 44.8%, 0%, 20.4%)
CIE-LAB	lab(48.29, 13.96, -52.01)
CIE-LCH	lch(48.29, 53.85, 285.03°)
OKLab	oklab(55.88% -0.0206 -0.1488)
OKLCH	oklch(55.88% 0.15 262.1)
XYZ	xyz(18.7498, 17.0221, 58.7858)
Luminance	0.1702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4170CB #CB9C41

analogous

#41B5CB #4170CB #5741CB

triadic

#4170CB #CB4170 #70CB41

tetradic

#4170CB #CB41B5 #CB9C41 #41CB57

square

#4170CB #CB41B5 #CB9C41 #41CB57

split-complementary

#4170CB #CB5741 #B5CB41

monochromatic

#1F3C72 #2C55A2 #4170CB #7194D8 #A1B8E5

Accessibility & contrast

On white

4.77

#4170CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#4170CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4170CB

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4170CB	#FFFFFF	#000000	##FFFFFF
##4170CB	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4379CE

Deuteranopia (green-blind)

#2A6DC9

Tritanopia (blue-blind)

#008593

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4170cb;
/* rgb */ color: rgb(65, 112, 203);
/* oklch */ color: oklch(55.9% 0.150 262.1);

Tailwind

colors: {
  custom: {
    50: '#8598db',
    500: '#4170cb',
    950: '#000000',
  },
}

SCSS

$custom: #4170cb;
$custom-light: #8598db;
$custom-dark: #000000;

JSON

{
  "hex": "#4170cb",
  "rgb": {
    "r": 65,
    "g": 112,
    "b": 203
  },
  "hsl": {
    "h": 219.565,
    "s": 57.025,
    "l": 52.549
  },
  "oklch": {
    "l": 0.55878,
    "c": 0.15018,
    "h": 262.1
  },
  "luminance": 0.17024
}

Semantic roles & 50–950 ramp

primary

#4170CB

secondary

#D2BD96

accent

#AC48E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4170CB

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

Preview Lab → · Contrast checker → · Palette generator →