#4166CC#4166CC

#4166CC is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.9% C 0.164 H 266.1°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#4166CC
RGB	rgb(65, 102, 204)
HSL	hsl(224, 58%, 53%)
HSV	hsv(224, 68%, 80%)
CMYK	cmyk(68.1%, 50%, 0%, 20%)
CIE-LAB	lab(45.61, 20.63, -56.89)
CIE-LCH	lch(45.61, 60.51, 289.94°)
OKLab	oklab(53.85% -0.0113 -0.1633)
OKLCH	oklch(53.85% 0.164 266.1)
XYZ	xyz(17.8266, 14.9844, 59.0678)
Luminance	0.1499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4166CC #CCA741

analogous

#41ABCC #4166CC #6241CC

triadic

#4166CC #CC4166 #66CC41

tetradic

#4166CC #CC41AB #CCA741 #41CC62

square

#4166CC #CC41AB #CCA741 #41CC62

split-complementary

#4166CC #CC6241 #ABCC41

monochromatic

#1F3674 #2C4CA4 #4166CC #718DD9 #A1B4E6

Accessibility & contrast

On white

5.25

#4166CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#4166CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4166CC

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4166CC	#FFFFFF	#000000	##FFFFFF
##4166CC	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B73D0

Deuteranopia (green-blind)

#0066CA

Tritanopia (blue-blind)

#007E8F

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #4166cc;
/* rgb */ color: rgb(65, 102, 204);
/* oklch */ color: oklch(53.9% 0.164 266.1);

Tailwind

colors: {
  custom: {
    50: '#8591dc',
    500: '#4166cc',
    950: '#000000',
  },
}

SCSS

$custom: #4166cc;
$custom-light: #8591dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4166cc",
  "rgb": {
    "r": 65,
    "g": 102,
    "b": 204
  },
  "hsl": {
    "h": 224.029,
    "s": 57.676,
    "l": 52.745
  },
  "oklch": {
    "l": 0.53852,
    "c": 0.16365,
    "h": 266.1
  },
  "luminance": 0.14986
}

Semantic roles & 50–950 ramp

primary

#4166CC

secondary

#D3C296

accent

#B847E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #4166CC

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

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