#648BB3#648BB3

#648BB3 is a light, moderate cyan. Relative luminance 0.244; OKLCH L 62.4% C 0.075 H 249.7°. Best body text is #000000 at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#648BB3
RGB	rgb(100, 139, 179)
HSL	hsl(210, 34%, 55%)
HSV	hsv(210, 44%, 70%)
CMYK	cmyk(44.1%, 22.3%, 0%, 29.8%)
CIE-LAB	lab(56.51, -2.70, -25.22)
CIE-LCH	lch(56.51, 25.37, 263.90°)
OKLab	oklab(62.37% -0.0259 -0.0701)
OKLCH	oklch(62.37% 0.075 249.7)
XYZ	xyz(22.6221, 24.4278, 46.1621)
Luminance	0.2443 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BB3 #B38C64

analogous

#64B2B3 #648BB3 #6564B3

triadic

#648BB3 #B3648B #8BB364

tetradic

#648BB3 #B364B2 #B38C64 #64B365

square

#648BB3 #B364B2 #B38C64 #64B365

split-complementary

#648BB3 #B36564 #B2B364

monochromatic

#344E69 #486C92 #648BB3 #8DAAC7 #B6C8DB

Accessibility & contrast

On white

3.57

#648BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.89

#648BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BB3

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BB3	#FFFFFF	#000000	##000000
##648BB3	1.00	3.57	5.89	5.89
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.89	21.00	1.00	1.00
##000000	5.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8CB5

Deuteranopia (green-blind)

#7184B2

Tritanopia (blue-blind)

#459498

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #648bb3;
/* rgb */ color: rgb(100, 139, 179);
/* oklch */ color: oklch(62.4% 0.075 249.7);

Tailwind

colors: {
  custom: {
    50: '#94acca',
    500: '#648bb3',
    950: '#000000',
  },
}

SCSS

$custom: #648bb3;
$custom-light: #94acca;
$custom-dark: #000000;

JSON

{
  "hex": "#648bb3",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 179
  },
  "hsl": {
    "h": 210.38,
    "s": 34.199,
    "l": 54.706
  },
  "oklch": {
    "l": 0.62372,
    "c": 0.07474,
    "h": 249.7
  },
  "luminance": 0.24429
}

Semantic roles & 50–950 ramp

primary

#648BB3

secondary

#CABAA9

accent

#955ECA

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #648BB3

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

Preview Lab → · Contrast checker → · Palette generator →