#688FCF#688FCF

#688FCF is a light, moderate blue. Relative luminance 0.271; OKLCH L 64.8% C 0.106 H 260.0°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#688FCF
RGB	rgb(104, 143, 207)
HSL	hsl(217, 52%, 61%)
HSV	hsv(217, 50%, 81%)
CMYK	cmyk(49.8%, 30.9%, 0%, 18.8%)
CIE-LAB	lab(59.06, 4.30, -37.10)
CIE-LCH	lch(59.06, 37.35, 276.61°)
OKLab	oklab(64.82% -0.0184 -0.1042)
OKLCH	oklch(64.82% 0.106 260)
XYZ	xyz(26.7901, 27.0911, 62.8368)
Luminance	0.2709 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688FCF #CFA868

analogous

#68C2CF #688FCF #7468CF

triadic

#688FCF #CF688F #8FCF68

tetradic

#688FCF #CF68C2 #CFA868 #68CF74

square

#688FCF #CF68C2 #CFA868 #68CF74

split-complementary

#688FCF #CF7468 #C2CF68

monochromatic

#2D528F #3C6DBE #688FCF #96B1DE #C5D4ED

Accessibility & contrast

On white

3.27

#688FCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#688FCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688FCF

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688FCF	#FFFFFF	#000000	##000000
##688FCF	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7693D2

Deuteranopia (green-blind)

#6A8ACE

Tritanopia (blue-blind)

#399DA6

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #688fcf;
/* rgb */ color: rgb(104, 143, 207);
/* oklch */ color: oklch(64.8% 0.106 260.0);

Tailwind

colors: {
  custom: {
    50: '#99afde',
    500: '#688fcf',
    950: '#000000',
  },
}

SCSS

$custom: #688fcf;
$custom-light: #99afde;
$custom-dark: #000000;

JSON

{
  "hex": "#688fcf",
  "rgb": {
    "r": 104,
    "g": 143,
    "b": 207
  },
  "hsl": {
    "h": 217.282,
    "s": 51.759,
    "l": 60.98
  },
  "oklch": {
    "l": 0.64819,
    "c": 0.10584,
    "h": 260
  },
  "luminance": 0.27093
}

Semantic roles & 50–950 ramp

primary

#688FCF

secondary

#DDCEB6

accent

#8526BF

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #688FCF

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

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