#688DB3#688DB3

#688DB3 is a light, moderate cyan. Relative luminance 0.252; OKLCH L 63.1% C 0.071 H 249.7°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#688DB3
RGB	rgb(104, 141, 179)
HSL	hsl(210, 33%, 55%)
HSV	hsv(210, 42%, 70%)
CMYK	cmyk(41.9%, 21.2%, 0%, 29.8%)
CIE-LAB	lab(57.31, -2.78, -23.97)
CIE-LCH	lch(57.31, 24.13, 263.38°)
OKLab	oklab(63.06% -0.0246 -0.0665)
OKLCH	oklch(63.06% 0.071 249.7)
XYZ	xyz(23.3678, 25.2461, 46.2807)
Luminance	0.2525 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688DB3 #B38E68

analogous

#68B3B3 #688DB3 #6868B3

triadic

#688DB3 #B3688D #8DB368

tetradic

#688DB3 #B368B3 #B38E68 #68B368

square

#688DB3 #B368B3 #B38E68 #68B368

split-complementary

#688DB3 #B36868 #B3B368

monochromatic

#36506B #4A6E94 #688DB3 #91ACC7 #B9CADC

Accessibility & contrast

On white

3.47

#688DB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#688DB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688DB3

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688DB3	#FFFFFF	#000000	##000000
##688DB3	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8EB5

Deuteranopia (green-blind)

#7586B2

Tritanopia (blue-blind)

#4C969A

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #688db3;
/* rgb */ color: rgb(104, 141, 179);
/* oklch */ color: oklch(63.1% 0.071 249.7);

Tailwind

colors: {
  custom: {
    50: '#96aec9',
    500: '#688db3',
    950: '#000000',
  },
}

SCSS

$custom: #688db3;
$custom-light: #96aec9;
$custom-dark: #000000;

JSON

{
  "hex": "#688db3",
  "rgb": {
    "r": 104,
    "g": 141,
    "b": 179
  },
  "hsl": {
    "h": 210.4,
    "s": 33.04,
    "l": 55.49
  },
  "oklch": {
    "l": 0.63063,
    "c": 0.07091,
    "h": 249.7
  },
  "luminance": 0.25247
}

Semantic roles & 50–950 ramp

primary

#688DB3

secondary

#CBBCAC

accent

#955FC9

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0E1013

muted

#7E7F82

Preview Lab

Preview with #688DB3

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

Preview Lab → · Contrast checker → · Palette generator →