#688CB0#688CB0

#688CB0 is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.7% C 0.068 H 249.0°. Best body text is #000000 at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#688CB0
RGB	rgb(104, 140, 176)
HSL	hsl(210, 31%, 55%)
HSV	hsv(210, 41%, 69%)
CMYK	cmyk(40.9%, 20.5%, 0%, 31%)
CIE-LAB	lab(56.91, -3.06, -22.88)
CIE-LCH	lch(56.91, 23.08, 262.39°)
OKLab	oklab(62.71% -0.0244 -0.0634)
OKLCH	oklch(62.71% 0.068 249)
XYZ	xyz(22.9209, 24.8325, 44.6513)
Luminance	0.2483 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688CB0 #B08C68

analogous

#68B0B0 #688CB0 #6868B0

triadic

#688CB0 #B0688C #8CB068

tetradic

#688CB0 #B068B0 #B08C68 #68B068

square

#688CB0 #B068B0 #B08C68 #68B068

split-complementary

#688CB0 #B06868 #B0B068

monochromatic

#364F67 #4B6D90 #688CB0 #90ABC5 #B8C9DA

Accessibility & contrast

On white

3.52

#688CB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.97

#688CB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688CB0

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688CB0	#FFFFFF	#000000	##000000
##688CB0	1.00	3.52	5.97	5.97
#FFFFFF	3.52	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)

#7E8DB2

Deuteranopia (green-blind)

#7585AF

Tritanopia (blue-blind)

#4E9498

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #688cb0;
/* rgb */ color: rgb(104, 140, 176);
/* oklch */ color: oklch(62.7% 0.068 249.0);

Tailwind

colors: {
  custom: {
    50: '#96adc7',
    500: '#688cb0',
    950: '#000000',
  },
}

SCSS

$custom: #688cb0;
$custom-light: #96adc7;
$custom-dark: #000000;

JSON

{
  "hex": "#688cb0",
  "rgb": {
    "r": 104,
    "g": 140,
    "b": 176
  },
  "hsl": {
    "h": 210,
    "s": 31.304,
    "l": 54.902
  },
  "oklch": {
    "l": 0.62707,
    "c": 0.06792,
    "h": 249
  },
  "luminance": 0.24834
}

Semantic roles & 50–950 ramp

primary

#688CB0

secondary

#C9BAAB

accent

#9460C7

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0E1013

muted

#7E7F82

Preview Lab

Preview with #688CB0

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

Preview Lab → · Contrast checker → · Palette generator →