#6166CB#6166CB

#6166CB is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.7% C 0.153 H 278.0°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#6166CB
RGB	rgb(97, 102, 203)
HSL	hsl(237, 50%, 59%)
HSV	hsv(237, 52%, 80%)
CMYK	cmyk(52.2%, 49.8%, 0%, 20.4%)
CIE-LAB	lab(47.44, 26.21, -53.28)
CIE-LCH	lch(47.44, 59.38, 296.20°)
OKLab	oklab(55.71% 0.0215 -0.1519)
OKLCH	oklch(55.71% 0.153 278)
XYZ	xyz(20.4573, 16.3547, 58.5671)
Luminance	0.1636 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6166CB #CBC661

analogous

#619BCB #6166CB #9161CB

triadic

#6166CB #CB6166 #66CB61

tetradic

#6166CB #CB619B #CBC661 #61CB91

square

#6166CB #CB619B #CBC661 #61CB91

split-complementary

#6166CB #CB9161 #9BCB61

monochromatic

#2C3086 #3B41B4 #6166CB #8F93DA #BDBFE9

Accessibility & contrast

On white

4.92

#6166CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#6166CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6166CB

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6166CB	#FFFFFF	#000000	##FFFFFF
##6166CB	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)

#3575CF

Deuteranopia (green-blind)

#296CC9

Tritanopia (blue-blind)

#337C8F

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #6166cb;
/* rgb */ color: rgb(97, 102, 203);
/* oklch */ color: oklch(55.7% 0.153 278.0);

Tailwind

colors: {
  custom: {
    50: '#9591db',
    500: '#6166cb',
    950: '#000000',
  },
}

SCSS

$custom: #6166cb;
$custom-light: #9591db;
$custom-dark: #000000;

JSON

{
  "hex": "#6166cb",
  "rgb": {
    "r": 97,
    "g": 102,
    "b": 203
  },
  "hsl": {
    "h": 237.17,
    "s": 50.476,
    "l": 58.824
  },
  "oklch": {
    "l": 0.55709,
    "c": 0.15343,
    "h": 278
  },
  "luminance": 0.16356
}

Semantic roles & 50–950 ramp

primary

#6166CB

secondary

#D9D7AF

accent

#D34EDA

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #6166CB

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

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