#648FBB#648FBB

#648FBB is a light, moderate cyan. Relative luminance 0.259; OKLCH L 63.6% C 0.082 H 249.8°. Best body text is #000000 at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#648FBB
RGB	rgb(100, 143, 187)
HSL	hsl(210, 39%, 56%)
HSV	hsv(210, 47%, 73%)
CMYK	cmyk(46.5%, 23.5%, 0%, 26.7%)
CIE-LAB	lab(57.98, -2.66, -27.51)
CIE-LCH	lch(57.98, 27.64, 264.48°)
OKLab	oklab(63.63% -0.0282 -0.0766)
OKLCH	oklch(63.63% 0.082 249.8)
XYZ	xyz(24.0446, 25.9405, 50.7441)
Luminance	0.2594 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FBB #BB9064

analogous

#64BBBB #648FBB #6564BB

triadic

#648FBB #BB648F #8FBB64

tetradic

#648FBB #BB64BB #BB9064 #64BB65

square

#648FBB #BB64BB #BB9064 #64BB65

split-complementary

#648FBB #BB6564 #BBBB64

monochromatic

#325272 #45709D #648FBB #8FAECE #B9CCE0

Accessibility & contrast

On white

3.39

#648FBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.19

#648FBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FBB

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FBB	#FFFFFF	#000000	##000000
##648FBB	1.00	3.39	6.19	6.19
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.19	21.00	1.00	1.00
##000000	6.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D90BD

Deuteranopia (green-blind)

#7387BA

Tritanopia (blue-blind)

#3F999E

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #648fbb;
/* rgb */ color: rgb(100, 143, 187);
/* oklch */ color: oklch(63.6% 0.082 249.8);

Tailwind

colors: {
  custom: {
    50: '#94afcf',
    500: '#648fbb',
    950: '#000000',
  },
}

SCSS

$custom: #648fbb;
$custom-light: #94afcf;
$custom-dark: #000000;

JSON

{
  "hex": "#648fbb",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 187
  },
  "hsl": {
    "h": 210.345,
    "s": 39.013,
    "l": 56.275
  },
  "oklch": {
    "l": 0.63633,
    "c": 0.08169,
    "h": 249.8
  },
  "luminance": 0.25942
}

Semantic roles & 50–950 ramp

primary

#648FBB

secondary

#CFBEAB

accent

#9559CF

background

#F9FAFC

surface

#F2F4F9

border

#CCCED2

text

#0D1014

muted

#7E7F82

Preview Lab

Preview with #648FBB

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

Preview Lab → · Contrast checker → · Palette generator →