#688DCB#688DCB

#688DCB is a light, moderate blue. Relative luminance 0.263; OKLCH L 64.2% C 0.102 H 260.4°. Best body text is #000000 at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#688DCB
RGB	rgb(104, 141, 203)
HSL	hsl(218, 49%, 60%)
HSV	hsv(218, 49%, 80%)
CMYK	cmyk(48.8%, 30.5%, 0%, 20.4%)
CIE-LAB	lab(58.32, 4.26, -36.00)
CIE-LCH	lch(58.32, 36.25, 276.74°)
OKLab	oklab(64.19% -0.0171 -0.101)
OKLCH	oklch(64.19% 0.102 260.4)
XYZ	xyz(26.0097, 26.3028, 60.1947)
Luminance	0.2631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688DCB #CBA668

analogous

#68BECB #688DCB #7568CB

triadic

#688DCB #CB688D #8DCB68

tetradic

#688DCB #CB68BE #CBA668 #68CB75

square

#688DCB #CB68BE #CBA668 #68CB75

split-complementary

#688DCB #CB7568 #BECB68

monochromatic

#2F5189 #3F6CB7 #688DCB #96AFDB #C3D2EA

Accessibility & contrast

On white

3.35

#688DCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.26

#688DCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688DCB

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688DCB	#FFFFFF	#000000	##000000
##688DCB	1.00	3.35	6.26	6.26
#FFFFFF	3.35	1.00	21.00	21.00
#000000	6.26	21.00	1.00	1.00
##000000	6.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7591CE

Deuteranopia (green-blind)

#6A88CA

Tritanopia (blue-blind)

#3D9AA3

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #688dcb;
/* rgb */ color: rgb(104, 141, 203);
/* oklch */ color: oklch(64.2% 0.102 260.4);

Tailwind

colors: {
  custom: {
    50: '#98aedb',
    500: '#688dcb',
    950: '#000000',
  },
}

SCSS

$custom: #688dcb;
$custom-light: #98aedb;
$custom-dark: #000000;

JSON

{
  "hex": "#688dcb",
  "rgb": {
    "r": 104,
    "g": 141,
    "b": 203
  },
  "hsl": {
    "h": 217.576,
    "s": 48.768,
    "l": 60.196
  },
  "oklch": {
    "l": 0.64186,
    "c": 0.10248,
    "h": 260.4
  },
  "luminance": 0.26305
}

Semantic roles & 50–950 ramp

primary

#688DCB

secondary

#DACCB4

accent

#8529BC

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #688DCB

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

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