#668EB5#668EB5

#668EB5 is a light, moderate cyan. Relative luminance 0.255; OKLCH L 63.3% C 0.074 H 248.4°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#668EB5
RGB	rgb(102, 142, 181)
HSL	hsl(210, 35%, 55%)
HSV	hsv(210, 44%, 71%)
CMYK	cmyk(43.6%, 21.5%, 0%, 29%)
CIE-LAB	lab(57.56, -3.31, -24.73)
CIE-LCH	lch(57.56, 24.96, 262.37°)
OKLab	oklab(63.26% -0.0271 -0.0687)
OKLCH	oklch(63.26% 0.074 248.4)
XYZ	xyz(23.4902, 25.5055, 47.3924)
Luminance	0.2551 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668EB5 #B58D66

analogous

#66B5B4 #668EB5 #6666B5

triadic

#668EB5 #B5668E #8EB566

tetradic

#668EB5 #B466B5 #B58D66 #66B566

square

#668EB5 #B466B5 #B58D66 #66B566

split-complementary

#668EB5 #B56666 #B5B466

monochromatic

#34516C #486F95 #668EB5 #8FACC9 #B8CBDD

Accessibility & contrast

On white

3.44

#668EB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#668EB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668EB5

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668EB5	#FFFFFF	#000000	##000000
##668EB5	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8FB7

Deuteranopia (green-blind)

#7587B4

Tritanopia (blue-blind)

#47979B

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #668eb5;
/* rgb */ color: rgb(102, 142, 181);
/* oklch */ color: oklch(63.3% 0.074 248.4);

Tailwind

colors: {
  custom: {
    50: '#95afcb',
    500: '#668eb5',
    950: '#000000',
  },
}

SCSS

$custom: #668eb5;
$custom-light: #95afcb;
$custom-dark: #000000;

JSON

{
  "hex": "#668eb5",
  "rgb": {
    "r": 102,
    "g": 142,
    "b": 181
  },
  "hsl": {
    "h": 209.62,
    "s": 34.802,
    "l": 55.49
  },
  "oklch": {
    "l": 0.63256,
    "c": 0.07386,
    "h": 248.4
  },
  "luminance": 0.25507
}

Semantic roles & 50–950 ramp

primary

#668EB5

secondary

#CCBBAB

accent

#935DCB

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #668EB5

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

Preview Lab → · Contrast checker → · Palette generator →