#688ACE#688ACE

#688ACE is a light, moderate blue. Relative luminance 0.256; OKLCH L 63.7% C 0.110 H 263.3°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#688ACE
RGB	rgb(104, 138, 206)
HSL	hsl(220, 51%, 61%)
HSV	hsv(220, 50%, 81%)
CMYK	cmyk(49.5%, 33%, 0%, 19.2%)
CIE-LAB	lab(57.63, 6.93, -38.78)
CIE-LCH	lch(57.63, 39.39, 280.13°)
OKLab	oklab(63.69% -0.0127 -0.1091)
OKLCH	oklch(63.69% 0.11 263.3)
XYZ	xyz(25.9343, 25.5745, 61.9503)
Luminance	0.2558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688ACE #CEAC68

analogous

#68BDCE #688ACE #7968CE

triadic

#688ACE #CE688A #8ACE68

tetradic

#688ACE #CE68BD #CEAC68 #68CE79

square

#688ACE #CE68BD #CEAC68 #68CE79

split-complementary

#688ACE #CE7968 #BDCE68

monochromatic

#2E4E8E #3D67BC #688ACE #96AEDD #C4D2EC

Accessibility & contrast

On white

3.43

#688ACE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#688ACE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688ACE

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688ACE	#FFFFFF	#000000	##000000
##688ACE	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7090D1

Deuteranopia (green-blind)

#6586CD

Tritanopia (blue-blind)

#3B99A3

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #688ace;
/* rgb */ color: rgb(104, 138, 206);
/* oklch */ color: oklch(63.7% 0.110 263.3);

Tailwind

colors: {
  custom: {
    50: '#99abdd',
    500: '#688ace',
    950: '#000000',
  },
}

SCSS

$custom: #688ace;
$custom-light: #99abdd;
$custom-dark: #000000;

JSON

{
  "hex": "#688ace",
  "rgb": {
    "r": 104,
    "g": 138,
    "b": 206
  },
  "hsl": {
    "h": 220,
    "s": 51,
    "l": 60.784
  },
  "oklch": {
    "l": 0.63692,
    "c": 0.10984,
    "h": 263.3
  },
  "luminance": 0.25576
}

Semantic roles & 50–950 ramp

primary

#688ACE

secondary

#DCCFB6

accent

#8C27BE

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #688ACE

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

Preview Lab → · Contrast checker → · Palette generator →