#688FDB#688FDB

#688FDB is a light, vivid blue. Relative luminance 0.277; OKLCH L 65.4% C 0.122 H 262.8°. Best body text is #000000 at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#688FDB
RGB	rgb(104, 143, 219)
HSL	hsl(220, 61%, 63%)
HSV	hsv(220, 53%, 86%)
CMYK	cmyk(52.5%, 34.7%, 0%, 14.1%)
CIE-LAB	lab(59.62, 7.99, -42.94)
CIE-LCH	lch(59.62, 43.68, 280.54°)
OKLab	oklab(65.44% -0.0153 -0.1212)
OKLCH	oklch(65.44% 0.122 262.8)
XYZ	xyz(28.3133, 27.7004, 70.8588)
Luminance	0.2770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688FDB #DBB468

analogous

#68C8DB #688FDB #7A68DB

triadic

#688FDB #DB688F #8FDB68

tetradic

#688FDB #DB68C8 #DBB468 #68DB7A

square

#688FDB #DB68C8 #DBB468 #68DB7A

split-complementary

#688FDB #DB7A68 #C8DB68

monochromatic

#2750A2 #376ACF #688FDB #99B4E7 #CBD8F3

Accessibility & contrast

On white

3.21

#688FDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.54

#688FDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688FDB

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688FDB	#FFFFFF	#000000	##000000
##688FDB	1.00	3.21	6.54	6.54
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.54	21.00	1.00	1.00
##000000	6.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7195DE

Deuteranopia (green-blind)

#638BD9

Tritanopia (blue-blind)

#2DA0AB

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #688fdb;
/* rgb */ color: rgb(104, 143, 219);
/* oklch */ color: oklch(65.4% 0.122 262.8);

Tailwind

colors: {
  custom: {
    50: '#9aafe6',
    500: '#688fdb',
    950: '#000000',
  },
}

SCSS

$custom: #688fdb;
$custom-light: #9aafe6;
$custom-dark: #000000;

JSON

{
  "hex": "#688fdb",
  "rgb": {
    "r": 104,
    "g": 143,
    "b": 219
  },
  "hsl": {
    "h": 219.652,
    "s": 61.497,
    "l": 63.333
  },
  "oklch": {
    "l": 0.65437,
    "c": 0.12214,
    "h": 262.8
  },
  "luminance": 0.27702
}

Semantic roles & 50–950 ramp

primary

#688FDB

secondary

#E4D6BB

accent

#8F1CC9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #688FDB

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

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