#688FCC#688FCC

#688FCC is a light, moderate blue. Relative luminance 0.269; OKLCH L 64.7% C 0.102 H 259.1°. Best body text is #000000 at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#688FCC
RGB	rgb(104, 143, 204)
HSL	hsl(217, 50%, 60%)
HSV	hsv(217, 49%, 80%)
CMYK	cmyk(49%, 29.9%, 0%, 20%)
CIE-LAB	lab(58.92, 3.39, -35.63)
CIE-LCH	lch(58.92, 35.79, 275.44°)
OKLab	oklab(64.67% -0.0193 -0.0999)
OKLCH	oklch(64.67% 0.102 259.1)
XYZ	xyz(26.4268, 26.9458, 60.9235)
Luminance	0.2695 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688FCC #CCA568

analogous

#68C1CC #688FCC #7368CC

triadic

#688FCC #CC688F #8FCC68

tetradic

#688FCC #CC68C1 #CCA568 #68CC73

square

#688FCC #CC68C1 #CCA568 #68CC73

split-complementary

#688FCC #CC7368 #C1CC68

monochromatic

#2F538B #3E6EB8 #688FCC #96B1DB #C3D3EB

Accessibility & contrast

On white

3.29

#688FCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.39

#688FCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688FCC

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688FCC	#FFFFFF	#000000	##000000
##688FCC	1.00	3.29	6.39	6.39
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.39	21.00	1.00	1.00
##000000	6.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7893CF

Deuteranopia (green-blind)

#6C89CB

Tritanopia (blue-blind)

#3C9CA5

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #688fcc;
/* rgb */ color: rgb(104, 143, 204);
/* oklch */ color: oklch(64.7% 0.102 259.1);

Tailwind

colors: {
  custom: {
    50: '#98afdc',
    500: '#688fcc',
    950: '#000000',
  },
}

SCSS

$custom: #688fcc;
$custom-light: #98afdc;
$custom-dark: #000000;

JSON

{
  "hex": "#688fcc",
  "rgb": {
    "r": 104,
    "g": 143,
    "b": 204
  },
  "hsl": {
    "h": 216.6,
    "s": 49.505,
    "l": 60.392
  },
  "oklch": {
    "l": 0.6467,
    "c": 0.10179,
    "h": 259.1
  },
  "luminance": 0.26948
}

Semantic roles & 50–950 ramp

primary

#688FCC

secondary

#DBCCB5

accent

#8329BD

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #688FCC

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

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