#669DB5#669DB5

#669DB5 is a light, moderate cyan. Relative luminance 0.303; OKLCH L 66.7% C 0.068 H 227.4°. Best body text is #000000 at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#669DB5
RGB	rgb(102, 157, 181)
HSL	hsl(198, 35%, 55%)
HSV	hsv(198, 44%, 71%)
CMYK	cmyk(43.6%, 13.3%, 0%, 29%)
CIE-LAB	lab(61.89, -11.68, -18.12)
CIE-LCH	lch(61.89, 21.56, 237.20°)
OKLab	oklab(66.68% -0.046 -0.05)
OKLCH	oklch(66.68% 0.068 227.4)
XYZ	xyz(25.8740, 30.2731, 48.1870)
Luminance	0.3028 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669DB5 #B57E66

analogous

#66B5A5 #669DB5 #6675B5

triadic

#669DB5 #B5669D #9DB566

tetradic

#669DB5 #A566B5 #B57E66 #75B566

square

#669DB5 #A566B5 #B57E66 #75B566

split-complementary

#669DB5 #B56675 #B5A566

monochromatic

#345B6C #487E95 #669DB5 #8FB7C9 #B8D2DD

Accessibility & contrast

On white

2.98

#669DB5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.06

#669DB5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #669DB5

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669DB5	#FFFFFF	#000000	##000000
##669DB5	1.00	2.98	7.06	7.06
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.06	21.00	1.00	1.00
##000000	7.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#909BB6

Deuteranopia (green-blind)

#8592B5

Tritanopia (blue-blind)

#44A4A5

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #669db5;
/* rgb */ color: rgb(102, 157, 181);
/* oklch */ color: oklch(66.7% 0.068 227.4);

Tailwind

colors: {
  custom: {
    50: '#95bacb',
    500: '#669db5',
    950: '#000000',
  },
}

SCSS

$custom: #669db5;
$custom-light: #95bacb;
$custom-dark: #000000;

JSON

{
  "hex": "#669db5",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 181
  },
  "hsl": {
    "h": 198.228,
    "s": 34.802,
    "l": 55.49
  },
  "oklch": {
    "l": 0.66676,
    "c": 0.06795,
    "h": 227.4
  },
  "luminance": 0.30275
}

Semantic roles & 50–950 ramp

primary

#669DB5

secondary

#CCB5AB

accent

#7E5DCB

background

#F9FBFC

surface

#F2F6F8

border

#CCD0D1

text

#0E1113

muted

#7E8082

Preview Lab

Preview with #669DB5

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

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