#6683BB#6683BB

#6683BB is a mid, moderate blue. Relative luminance 0.226; OKLCH L 61.1% C 0.092 H 262.9°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#6683BB
RGB	rgb(102, 131, 187)
HSL	hsl(220, 38%, 57%)
HSV	hsv(220, 45%, 73%)
CMYK	cmyk(45.5%, 29.9%, 0%, 26.7%)
CIE-LAB	lab(54.70, 4.83, -32.59)
CIE-LCH	lch(54.70, 32.94, 278.43°)
OKLab	oklab(61.1% -0.0113 -0.0912)
OKLCH	oklch(61.1% 0.092 262.9)
XYZ	xyz(22.5625, 22.6439, 50.1859)
Luminance	0.2265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6683BB #BB9E66

analogous

#66AEBB #6683BB #7466BB

triadic

#6683BB #BB6683 #83BB66

tetradic

#6683BB #BB66AE #BB9E66 #66BB74

square

#6683BB #BB66AE #BB9E66 #66BB74

split-complementary

#6683BB #BB7466 #AEBB66

monochromatic

#334973 #46649E #6683BB #90A5CE #BBC8E1

Accessibility & contrast

On white

3.80

#6683BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#6683BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6683BB

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6683BB	#FFFFFF	#000000	##000000
##6683BB	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E87BD

Deuteranopia (green-blind)

#657FBA

Tritanopia (blue-blind)

#468F97

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #6683bb;
/* rgb */ color: rgb(102, 131, 187);
/* oklch */ color: oklch(61.1% 0.092 262.9);

Tailwind

colors: {
  custom: {
    50: '#95a6cf',
    500: '#6683bb',
    950: '#000000',
  },
}

SCSS

$custom: #6683bb;
$custom-light: #95a6cf;
$custom-dark: #000000;

JSON

{
  "hex": "#6683bb",
  "rgb": {
    "r": 102,
    "g": 131,
    "b": 187
  },
  "hsl": {
    "h": 219.529,
    "s": 38.462,
    "l": 56.667
  },
  "oklch": {
    "l": 0.61097,
    "c": 0.09194,
    "h": 262.9
  },
  "luminance": 0.22645
}

Semantic roles & 50–950 ramp

primary

#6683BB

secondary

#D0C4AD

accent

#A659CE

background

#F9FAFC

surface

#F2F4F9

border

#CCCED2

text

#0E0F14

muted

#7E7F82

Preview Lab

Preview with #6683BB

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

Preview Lab → · Contrast checker → · Palette generator →