#668CCB#668CCB

#668CCB is a light, moderate blue. Relative luminance 0.259; OKLCH L 63.9% C 0.104 H 260.2°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#668CCB
RGB	rgb(102, 140, 203)
HSL	hsl(217, 49%, 60%)
HSV	hsv(217, 50%, 80%)
CMYK	cmyk(49.8%, 31%, 0%, 20.4%)
CIE-LAB	lab(57.93, 4.36, -36.62)
CIE-LCH	lch(57.93, 36.88, 276.80°)
OKLab	oklab(63.85% -0.0178 -0.1029)
OKLCH	oklch(63.85% 0.104 260.2)
XYZ	xyz(25.6335, 25.8910, 60.1350)
Luminance	0.2589 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668CCB #CBA566

analogous

#66BECB #668CCB #7366CB

triadic

#668CCB #CB668C #8CCB66

tetradic

#668CCB #CB66BE #CBA566 #66CB73

square

#668CCB #CB66BE #CBA566 #66CB73

split-complementary

#668CCB #CB7366 #BECB66

monochromatic

#2E5088 #3E6BB6 #668CCB #94AEDB #C1D1EA

Accessibility & contrast

On white

3.40

#668CCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#668CCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CCB

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668CCB	#FFFFFF	#000000	##000000
##668CCB	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7490CE

Deuteranopia (green-blind)

#6887CA

Tritanopia (blue-blind)

#389AA2

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #668ccb;
/* rgb */ color: rgb(102, 140, 203);
/* oklch */ color: oklch(63.9% 0.104 260.2);

Tailwind

colors: {
  custom: {
    50: '#97addb',
    500: '#668ccb',
    950: '#000000',
  },
}

SCSS

$custom: #668ccb;
$custom-light: #97addb;
$custom-dark: #000000;

JSON

{
  "hex": "#668ccb",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 203
  },
  "hsl": {
    "h": 217.426,
    "s": 49.268,
    "l": 59.804
  },
  "oklch": {
    "l": 0.63852,
    "c": 0.10441,
    "h": 260.2
  },
  "luminance": 0.25893
}

Semantic roles & 50–950 ramp

primary

#668CCB

secondary

#DACBB3

accent

#A54FD9

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #668CCB

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

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