#648CBB#648CBB

#648CBB is a light, moderate cyan. Relative luminance 0.251; OKLCH L 63.0% C 0.084 H 253.0°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#648CBB
RGB	rgb(100, 140, 187)
HSL	hsl(212, 39%, 56%)
HSV	hsv(212, 47%, 73%)
CMYK	cmyk(46.5%, 25.1%, 0%, 26.7%)
CIE-LAB	lab(57.13, -0.93, -28.83)
CIE-LCH	lch(57.13, 28.85, 268.15°)
OKLab	oklab(62.96% -0.0245 -0.0804)
OKLCH	oklch(62.96% 0.084 253)
XYZ	xyz(23.6002, 25.0518, 50.5960)
Luminance	0.2505 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648CBB #BB9364

analogous

#64B8BB #648CBB #6864BB

triadic

#648CBB #BB648C #8CBB64

tetradic

#648CBB #BB64B8 #BB9364 #64BB68

square

#648CBB #BB64B8 #BB9364 #64BB68

split-complementary

#648CBB #BB6864 #B8BB64

monochromatic

#325072 #456D9D #648CBB #8FACCE #B9CBE0

Accessibility & contrast

On white

3.49

#648CBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#648CBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648CBB

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648CBB	#FFFFFF	#000000	##000000
##648CBB	1.00	3.49	6.01	6.01
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8EBD

Deuteranopia (green-blind)

#6F85BA

Tritanopia (blue-blind)

#40979C

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #648cbb;
/* rgb */ color: rgb(100, 140, 187);
/* oklch */ color: oklch(63.0% 0.084 253.0);

Tailwind

colors: {
  custom: {
    50: '#94adcf',
    500: '#648cbb',
    950: '#000000',
  },
}

SCSS

$custom: #648cbb;
$custom-light: #94adcf;
$custom-dark: #000000;

JSON

{
  "hex": "#648cbb",
  "rgb": {
    "r": 100,
    "g": 140,
    "b": 187
  },
  "hsl": {
    "h": 212.414,
    "s": 39.013,
    "l": 56.275
  },
  "oklch": {
    "l": 0.62961,
    "c": 0.08409,
    "h": 253
  },
  "luminance": 0.25053
}

Semantic roles & 50–950 ramp

primary

#648CBB

secondary

#CFBFAB

accent

#9959CF

background

#F9FAFC

surface

#F2F4F9

border

#CCCED2

text

#0D1014

muted

#7E7F82

Preview Lab

Preview with #648CBB

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

Preview Lab → · Contrast checker → · Palette generator →