#688BBC#688BBC

#688BBC is a light, moderate blue. Relative luminance 0.250; OKLCH L 63.0% C 0.084 H 256.9°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#688BBC
RGB	rgb(104, 139, 188)
HSL	hsl(215, 39%, 57%)
HSV	hsv(215, 45%, 74%)
CMYK	cmyk(44.7%, 26.1%, 0%, 26.3%)
CIE-LAB	lab(57.11, 0.96, -29.40)
CIE-LCH	lch(57.11, 29.42, 271.87°)
OKLab	oklab(63.03% -0.0191 -0.082)
OKLCH	oklch(63.03% 0.084 256.9)
XYZ	xyz(24.0157, 25.0377, 51.1345)
Luminance	0.2504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688BBC #BC9968

analogous

#68B5BC #688BBC #6F68BC

triadic

#688BBC #BC688B #8BBC68

tetradic

#688BBC #BC68B5 #BC9968 #68BC6F

square

#688BBC #BC68B5 #BC9968 #68BC6F

split-complementary

#688BBC #BC6F68 #B5BC68

monochromatic

#344F75 #476CA0 #688BBC #92ACCF #BDCCE2

Accessibility & contrast

On white

3.50

#688BBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#688BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688BBC

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688BBC	#FFFFFF	#000000	##000000
##688BBC	1.00	3.50	6.01	6.01
#FFFFFF	3.50	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#798EBE

Deuteranopia (green-blind)

#6F85BB

Tritanopia (blue-blind)

#48969C

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #688bbc;
/* rgb */ color: rgb(104, 139, 188);
/* oklch */ color: oklch(63.0% 0.084 256.9);

Tailwind

colors: {
  custom: {
    50: '#97acd0',
    500: '#688bbc',
    950: '#000000',
  },
}

SCSS

$custom: #688bbc;
$custom-light: #97acd0;
$custom-dark: #000000;

JSON

{
  "hex": "#688bbc",
  "rgb": {
    "r": 104,
    "g": 139,
    "b": 188
  },
  "hsl": {
    "h": 215,
    "s": 38.532,
    "l": 57.255
  },
  "oklch": {
    "l": 0.63025,
    "c": 0.08422,
    "h": 256.9
  },
  "luminance": 0.25039
}

Semantic roles & 50–950 ramp

primary

#688BBC

secondary

#D1C3AF

accent

#9E59CE

background

#F9FAFC

surface

#F2F4F9

border

#CCCED2

text

#0E1014

muted

#7E7F82

Preview Lab

Preview with #688BBC

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

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