#688DDB#688DDB

#688DDB is a light, vivid blue. Relative luminance 0.271; OKLCH L 65.0% C 0.124 H 264.0°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#688DDB
RGB	rgb(104, 141, 219)
HSL	hsl(221, 61%, 63%)
HSV	hsv(221, 53%, 86%)
CMYK	cmyk(52.5%, 35.6%, 0%, 14.1%)
CIE-LAB	lab(59.07, 9.17, -43.80)
CIE-LCH	lch(59.07, 44.75, 281.82°)
OKLab	oklab(65.01% -0.013 -0.1237)
OKLCH	oklch(65.01% 0.124 264)
XYZ	xyz(28.0157, 27.1052, 70.7596)
Luminance	0.2711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688DDB #DBB668

analogous

#68C6DB #688DDB #7C68DB

triadic

#688DDB #DB688D #8DDB68

tetradic

#688DDB #DB68C6 #DBB668 #68DB7C

square

#688DDB #DB68C6 #DBB668 #68DB7C

split-complementary

#688DDB #DB7C68 #C6DB68

monochromatic

#274EA2 #3768CF #688DDB #99B2E7 #CBD8F3

Accessibility & contrast

On white

3.27

#688DDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#688DDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688DDB

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688DDB	#FFFFFF	#000000	##000000
##688DDB	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E94DE

Deuteranopia (green-blind)

#6189D9

Tritanopia (blue-blind)

#2D9EAA

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #688ddb;
/* rgb */ color: rgb(104, 141, 219);
/* oklch */ color: oklch(65.0% 0.124 264.0);

Tailwind

colors: {
  custom: {
    50: '#9aaee6',
    500: '#688ddb',
    950: '#000000',
  },
}

SCSS

$custom: #688ddb;
$custom-light: #9aaee6;
$custom-dark: #000000;

JSON

{
  "hex": "#688ddb",
  "rgb": {
    "r": 104,
    "g": 141,
    "b": 219
  },
  "hsl": {
    "h": 220.696,
    "s": 61.497,
    "l": 63.333
  },
  "oklch": {
    "l": 0.65014,
    "c": 0.12438,
    "h": 264
  },
  "luminance": 0.27107
}

Semantic roles & 50–950 ramp

primary

#688DDB

secondary

#E4D7BB

accent

#921CC9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #688DDB

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

Preview Lab → · Contrast checker → · Palette generator →