#688BCC#688BCC

#688BCC is a light, moderate blue. Relative luminance 0.258; OKLCH L 63.8% C 0.106 H 262.2°. Best body text is #000000 at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#688BCC
RGB	rgb(104, 139, 204)
HSL	hsl(219, 50%, 60%)
HSV	hsv(219, 49%, 80%)
CMYK	cmyk(49%, 31.9%, 0%, 20%)
CIE-LAB	lab(57.81, 5.73, -37.36)
CIE-LCH	lch(57.81, 37.80, 278.72°)
OKLab	oklab(63.8% -0.0144 -0.105)
OKLCH	oklch(63.8% 0.106 262.2)
XYZ	xyz(25.8370, 25.7662, 60.7269)
Luminance	0.2577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688BCC #CCA968

analogous

#68BDCC #688BCC #7768CC

triadic

#688BCC #CC688B #8BCC68

tetradic

#688BCC #CC68BD #CCA968 #68CC77

square

#688BCC #CC68BD #CCA968 #68CC77

split-complementary

#688BCC #CC7768 #BDCC68

monochromatic

#2F4F8B #3E69B8 #688BCC #96AEDB #C3D1EB

Accessibility & contrast

On white

3.41

#688BCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.15

#688BCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688BCC

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688BCC	#FFFFFF	#000000	##000000
##688BCC	1.00	3.41	6.15	6.15
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.15	21.00	1.00	1.00
##000000	6.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7290CF

Deuteranopia (green-blind)

#6787CB

Tritanopia (blue-blind)

#3D99A2

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #688bcc;
/* rgb */ color: rgb(104, 139, 204);
/* oklch */ color: oklch(63.8% 0.106 262.2);

Tailwind

colors: {
  custom: {
    50: '#98acdc',
    500: '#688bcc',
    950: '#000000',
  },
}

SCSS

$custom: #688bcc;
$custom-light: #98acdc;
$custom-dark: #000000;

JSON

{
  "hex": "#688bcc",
  "rgb": {
    "r": 104,
    "g": 139,
    "b": 204
  },
  "hsl": {
    "h": 219,
    "s": 49.505,
    "l": 60.392
  },
  "oklch": {
    "l": 0.63804,
    "c": 0.10598,
    "h": 262.2
  },
  "luminance": 0.25768
}

Semantic roles & 50–950 ramp

primary

#688BCC

secondary

#DBCEB5

accent

#8929BD

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #688BCC

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

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