#648FCB#648FCB

#648FCB is a light, moderate cyan. Relative luminance 0.267; OKLCH L 64.4% C 0.102 H 256.8°. Best body text is #000000 at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#648FCB
RGB	rgb(100, 143, 203)
HSL	hsl(215, 50%, 59%)
HSV	hsv(215, 51%, 80%)
CMYK	cmyk(50.7%, 29.6%, 0%, 20.4%)
CIE-LAB	lab(58.66, 2.15, -35.49)
CIE-LCH	lch(58.66, 35.55, 273.46°)
OKLab	oklab(64.39% -0.0233 -0.0996)
OKLCH	oklch(64.39% 0.102 256.8)
XYZ	xyz(25.8538, 26.6642, 60.2727)
Luminance	0.2667 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FCB #CBA064

analogous

#64C3CB #648FCB #6D64CB

triadic

#648FCB #CB648F #8FCB64

tetradic

#648FCB #CB64C3 #CBA064 #64CB6D

square

#648FCB #CB64C3 #CBA064 #64CB6D

split-complementary

#648FCB #CB6D64 #C3CB64

monochromatic

#2D5387 #3D6FB5 #648FCB #92B0DA #C0D1EA

Accessibility & contrast

On white

3.32

#648FCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.33

#648FCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FCB

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FCB	#FFFFFF	#000000	##000000
##648FCB	1.00	3.32	6.33	6.33
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.33	21.00	1.00	1.00
##000000	6.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7893CE

Deuteranopia (green-blind)

#6B89CA

Tritanopia (blue-blind)

#329CA4

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #648fcb;
/* rgb */ color: rgb(100, 143, 203);
/* oklch */ color: oklch(64.4% 0.102 256.8);

Tailwind

colors: {
  custom: {
    50: '#96afdb',
    500: '#648fcb',
    950: '#000000',
  },
}

SCSS

$custom: #648fcb;
$custom-light: #96afdb;
$custom-dark: #000000;

JSON

{
  "hex": "#648fcb",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 203
  },
  "hsl": {
    "h": 214.951,
    "s": 49.758,
    "l": 59.412
  },
  "oklch": {
    "l": 0.64392,
    "c": 0.10229,
    "h": 256.8
  },
  "luminance": 0.26666
}

Semantic roles & 50–950 ramp

primary

#648FCB

secondary

#D9C9B1

accent

#9F4FD9

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #648FCB

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

Preview Lab → · Contrast checker → · Palette generator →