#688BCB#688BCB

#688BCB is a light, moderate blue. Relative luminance 0.257; OKLCH L 63.8% C 0.105 H 261.9°. Best body text is #000000 at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#688BCB
RGB	rgb(104, 139, 203)
HSL	hsl(219, 49%, 60%)
HSV	hsv(219, 49%, 80%)
CMYK	cmyk(48.8%, 31.5%, 0%, 20.4%)
CIE-LAB	lab(57.77, 5.43, -36.87)
CIE-LCH	lch(57.77, 37.27, 278.37°)
OKLab	oklab(63.75% -0.0147 -0.1036)
OKLCH	oklch(63.75% 0.105 261.9)
XYZ	xyz(25.7175, 25.7184, 60.0973)
Luminance	0.2572 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688BCB #CBA868

analogous

#68BCCB #688BCB #7768CB

triadic

#688BCB #CB688B #8BCB68

tetradic

#688BCB #CB68BC #CBA868 #68CB77

square

#688BCB #CB68BC #CBA868 #68CB77

split-complementary

#688BCB #CB7768 #BCCB68

monochromatic

#2F4F89 #3F69B7 #688BCB #96AEDB #C3D1EA

Accessibility & contrast

On white

3.42

#688BCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.14

#688BCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688BCB

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688BCB	#FFFFFF	#000000	##000000
##688BCB	1.00	3.42	6.14	6.14
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.14	21.00	1.00	1.00
##000000	6.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7390CE

Deuteranopia (green-blind)

#6787CA

Tritanopia (blue-blind)

#3D99A2

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #688bcb;
/* rgb */ color: rgb(104, 139, 203);
/* oklch */ color: oklch(63.8% 0.105 261.9);

Tailwind

colors: {
  custom: {
    50: '#98acdb',
    500: '#688bcb',
    950: '#000000',
  },
}

SCSS

$custom: #688bcb;
$custom-light: #98acdb;
$custom-dark: #000000;

JSON

{
  "hex": "#688bcb",
  "rgb": {
    "r": 104,
    "g": 139,
    "b": 203
  },
  "hsl": {
    "h": 218.788,
    "s": 48.768,
    "l": 60.196
  },
  "oklch": {
    "l": 0.63754,
    "c": 0.1046,
    "h": 261.9
  },
  "luminance": 0.2572
}

Semantic roles & 50–950 ramp

primary

#688BCB

secondary

#DACDB4

accent

#8829BC

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #688BCB

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

Preview Lab → · Contrast checker → · Palette generator →