#688CDB#688CDB

#688CDB is a light, vivid blue. Relative luminance 0.268; OKLCH L 64.8% C 0.126 H 264.6°. Best body text is #000000 at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#688CDB
RGB	rgb(104, 140, 219)
HSL	hsl(221, 61%, 63%)
HSV	hsv(221, 53%, 86%)
CMYK	cmyk(52.5%, 36.1%, 0%, 14.1%)
CIE-LAB	lab(58.80, 9.76, -44.23)
CIE-LCH	lch(58.80, 45.30, 282.44°)
OKLab	oklab(64.8% -0.0118 -0.125)
OKLCH	oklch(64.8% 0.126 264.6)
XYZ	xyz(27.8689, 26.8117, 70.7107)
Luminance	0.2681 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688CDB #DBB768

analogous

#68C6DB #688CDB #7D68DB

triadic

#688CDB #DB688C #8CDB68

tetradic

#688CDB #DB68C6 #DBB768 #68DB7D

square

#688CDB #DB68C6 #DBB768 #68DB7D

split-complementary

#688CDB #DB7D68 #C6DB68

monochromatic

#274DA2 #3766CF #688CDB #99B2E7 #CBD7F3

Accessibility & contrast

On white

3.30

#688CDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.36

#688CDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688CDB

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688CDB	#FFFFFF	#000000	##000000
##688CDB	1.00	3.30	6.36	6.36
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.36	21.00	1.00	1.00
##000000	6.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D93DE

Deuteranopia (green-blind)

#5F89D9

Tritanopia (blue-blind)

#2E9DA9

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #688cdb;
/* rgb */ color: rgb(104, 140, 219);
/* oklch */ color: oklch(64.8% 0.126 264.6);

Tailwind

colors: {
  custom: {
    50: '#9aade6',
    500: '#688cdb',
    950: '#000000',
  },
}

SCSS

$custom: #688cdb;
$custom-light: #9aade6;
$custom-dark: #000000;

JSON

{
  "hex": "#688cdb",
  "rgb": {
    "r": 104,
    "g": 140,
    "b": 219
  },
  "hsl": {
    "h": 221.217,
    "s": 61.497,
    "l": 63.333
  },
  "oklch": {
    "l": 0.64803,
    "c": 0.12552,
    "h": 264.6
  },
  "luminance": 0.26814
}

Semantic roles & 50–950 ramp

primary

#688CDB

secondary

#E4D7BB

accent

#931CC9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #688CDB

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

Preview Lab → · Contrast checker → · Palette generator →