#66789F#66789F

#66789F is a mid, moderate blue. Relative luminance 0.188; OKLCH L 57.3% C 0.064 H 265.2°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#66789F
RGB	rgb(102, 120, 159)
HSL	hsl(221, 23%, 51%)
HSV	hsv(221, 36%, 62%)
CMYK	cmyk(35.8%, 24.5%, 0%, 37.6%)
CIE-LAB	lab(50.41, 3.29, -23.09)
CIE-LCH	lch(50.41, 23.32, 278.10°)
OKLab	oklab(57.35% -0.0053 -0.064)
OKLCH	oklch(57.35% 0.064 265.2)
XYZ	xyz(18.4521, 18.7601, 35.4430)
Luminance	0.1876 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66789F #9F8D66

analogous

#66949F #66789F #70669F

triadic

#66789F #9F6678 #789F66

tetradic

#66789F #9F6694 #9F8D66 #669F70

square

#66789F #9F6694 #9F8D66 #669F70

split-complementary

#66789F #9F7066 #949F66

monochromatic

#353F55 #4D5B7B #66789F #8C99B7 #B1BACE

Accessibility & contrast

On white

4.42

#66789F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#66789F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66789F

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66789F	#FFFFFF	#000000	##000000
##66789F	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7BA1

Deuteranopia (green-blind)

#65769E

Tritanopia (blue-blind)

#558085

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #66789f;
/* rgb */ color: rgb(102, 120, 159);
/* oklch */ color: oklch(57.3% 0.064 265.2);

Tailwind

colors: {
  custom: {
    50: '#939ebb',
    500: '#66789f',
    950: '#000000',
  },
}

SCSS

$custom: #66789f;
$custom-light: #939ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#66789f",
  "rgb": {
    "r": 102,
    "g": 120,
    "b": 159
  },
  "hsl": {
    "h": 221.053,
    "s": 22.892,
    "l": 51.176
  },
  "oklch": {
    "l": 0.57349,
    "c": 0.06419,
    "h": 265.2
  },
  "luminance": 0.18761
}

Semantic roles & 50–950 ramp

primary

#66789F

secondary

#BDB5A4

accent

#A468BF

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0E12

muted

#7E7E81

Preview Lab

Preview with #66789F

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

Preview Lab → · Contrast checker → · Palette generator →