#688CDA#688CDA

#688CDA is a light, vivid blue. Relative luminance 0.268; OKLCH L 64.7% C 0.124 H 264.4°. Best body text is #000000 at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#688CDA
RGB	rgb(104, 140, 218)
HSL	hsl(221, 61%, 63%)
HSV	hsv(221, 52%, 85%)
CMYK	cmyk(52.3%, 35.8%, 0%, 14.5%)
CIE-LAB	lab(58.75, 9.45, -43.75)
CIE-LCH	lch(58.75, 44.76, 282.19°)
OKLab	oklab(64.75% -0.0121 -0.1235)
OKLCH	oklch(64.75% 0.124 264.4)
XYZ	xyz(27.7377, 26.7592, 70.0195)
Luminance	0.2676 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688CDA #DAB668

analogous

#68C5DA #688CDA #7D68DA

triadic

#688CDA #DA688C #8CDA68

tetradic

#688CDA #DA68C5 #DAB668 #68DA7D

square

#688CDA #DA68C5 #DAB668 #68DA7D

split-complementary

#688CDA #DA7D68 #C5DA68

monochromatic

#274EA0 #3767CE #688CDA #99B1E6 #CAD7F2

Accessibility & contrast

On white

3.31

#688CDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.35

#688CDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688CDA

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688CDA	#FFFFFF	#000000	##000000
##688CDA	1.00	3.31	6.35	6.35
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.35	21.00	1.00	1.00
##000000	6.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D93DD

Deuteranopia (green-blind)

#6089D8

Tritanopia (blue-blind)

#2F9DA9

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #688cda;
/* rgb */ color: rgb(104, 140, 218);
/* oklch */ color: oklch(64.7% 0.124 264.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#688cda",
  "rgb": {
    "r": 104,
    "g": 140,
    "b": 218
  },
  "hsl": {
    "h": 221.053,
    "s": 60.638,
    "l": 63.137
  },
  "oklch": {
    "l": 0.64749,
    "c": 0.12414,
    "h": 264.4
  },
  "luminance": 0.26761
}

Semantic roles & 50–950 ramp

primary

#688CDA

secondary

#E3D6BA

accent

#921DC8

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #688CDA

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

Preview Lab → · Contrast checker → · Palette generator →