#688CB1#688CB1

#688CB1 is a light, moderate cyan. Relative luminance 0.249; OKLCH L 62.8% C 0.069 H 249.7°. Best body text is #000000 at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#688CB1
RGB	rgb(104, 140, 177)
HSL	hsl(210, 32%, 55%)
HSV	hsv(210, 41%, 69%)
CMYK	cmyk(41.2%, 20.9%, 0%, 30.6%)
CIE-LAB	lab(56.95, -2.77, -23.39)
CIE-LCH	lch(56.95, 23.55, 263.24°)
OKLab	oklab(62.75% -0.024 -0.0648)
OKLCH	oklch(62.75% 0.069 249.7)
XYZ	xyz(23.0202, 24.8722, 45.1743)
Luminance	0.2487 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688CB1 #B18D68

analogous

#68B1B1 #688CB1 #6868B1

triadic

#688CB1 #B1688C #8CB168

tetradic

#688CB1 #B168B1 #B18D68 #68B168

square

#688CB1 #B168B1 #B18D68 #68B168

split-complementary

#688CB1 #B16868 #B1B168

monochromatic

#364F69 #4B6D91 #688CB1 #90ABC6 #B9C9DB

Accessibility & contrast

On white

3.51

#688CB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.97

#688CB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688CB1

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688CB1	#FFFFFF	#000000	##000000
##688CB1	1.00	3.51	5.97	5.97
#FFFFFF	3.51	1.00	21.00	21.00
#000000	5.97	21.00	1.00	1.00
##000000	5.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8DB3

Deuteranopia (green-blind)

#7585B0

Tritanopia (blue-blind)

#4D9498

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #688cb1;
/* rgb */ color: rgb(104, 140, 177);
/* oklch */ color: oklch(62.8% 0.069 249.7);

Tailwind

colors: {
  custom: {
    50: '#96adc8',
    500: '#688cb1',
    950: '#000000',
  },
}

SCSS

$custom: #688cb1;
$custom-light: #96adc8;
$custom-dark: #000000;

JSON

{
  "hex": "#688cb1",
  "rgb": {
    "r": 104,
    "g": 140,
    "b": 177
  },
  "hsl": {
    "h": 210.411,
    "s": 31.878,
    "l": 55.098
  },
  "oklch": {
    "l": 0.62751,
    "c": 0.06915,
    "h": 249.7
  },
  "luminance": 0.24874
}

Semantic roles & 50–950 ramp

primary

#688CB1

secondary

#CABBAB

accent

#9560C8

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0E1013

muted

#7E7F82

Preview Lab

Preview with #688CB1

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

Preview Lab → · Contrast checker → · Palette generator →