#688FDF#688FDF

#688FDF is a light, vivid blue. Relative luminance 0.279; OKLCH L 65.6% C 0.128 H 263.6°. Best body text is #000000 at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#688FDF
RGB	rgb(104, 143, 223)
HSL	hsl(220, 65%, 64%)
HSV	hsv(220, 53%, 87%)
CMYK	cmyk(53.4%, 35.9%, 0%, 12.5%)
CIE-LAB	lab(59.81, 9.24, -44.87)
CIE-LCH	lch(59.81, 45.81, 281.64°)
OKLab	oklab(65.65% -0.0143 -0.1268)
OKLCH	oklch(65.65% 0.128 263.6)
XYZ	xyz(28.8462, 27.9135, 73.6655)
Luminance	0.2792 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688FDF #DFB868

analogous

#68CBDF #688FDF #7D68DF

triadic

#688FDF #DF688F #8FDF68

tetradic

#688FDF #DF68CB #DFB868 #68DF7D

square

#688FDF #DF68CB #DFB868 #68DF7D

split-complementary

#688FDF #DF7D68 #CBDF68

monochromatic

#244FA9 #366AD4 #688FDF #9BB4EA #CDDAF4

Accessibility & contrast

On white

3.19

#688FDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.58

#688FDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688FDF

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688FDF	#FFFFFF	#000000	##000000
##688FDF	1.00	3.19	6.58	6.58
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.58	21.00	1.00	1.00
##000000	6.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F96E2

Deuteranopia (green-blind)

#618BDD

Tritanopia (blue-blind)

#28A0AC

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #688fdf;
/* rgb */ color: rgb(104, 143, 223);
/* oklch */ color: oklch(65.6% 0.128 263.6);

Tailwind

colors: {
  custom: {
    50: '#9aafe9',
    500: '#688fdf',
    950: '#000000',
  },
}

SCSS

$custom: #688fdf;
$custom-light: #9aafe9;
$custom-dark: #000000;

JSON

{
  "hex": "#688fdf",
  "rgb": {
    "r": 104,
    "g": 143,
    "b": 223
  },
  "hsl": {
    "h": 220.336,
    "s": 65.027,
    "l": 64.118
  },
  "oklch": {
    "l": 0.6565,
    "c": 0.1276,
    "h": 263.6
  },
  "luminance": 0.27916
}

Semantic roles & 50–950 ramp

primary

#688FDF

secondary

#E6D9BD

accent

#9219CD

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #688FDF

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

Preview Lab → · Contrast checker → · Palette generator →