#648CB3#648CB3

#648CB3 is a light, moderate cyan. Relative luminance 0.247; OKLCH L 62.6% C 0.074 H 248.5°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#648CB3
RGB	rgb(100, 140, 179)
HSL	hsl(210, 34%, 55%)
HSV	hsv(210, 44%, 70%)
CMYK	cmyk(44.1%, 21.8%, 0%, 29.8%)
CIE-LAB	lab(56.80, -3.27, -24.78)
CIE-LCH	lch(56.80, 25.00, 262.48°)
OKLab	oklab(62.6% -0.0272 -0.0688)
OKLCH	oklch(62.6% 0.074 248.5)
XYZ	xyz(22.7676, 24.7187, 46.2106)
Luminance	0.2472 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648CB3 #B38B64

analogous

#64B3B2 #648CB3 #6465B3

triadic

#648CB3 #B3648C #8CB364

tetradic

#648CB3 #B264B3 #B38B64 #65B364

square

#648CB3 #B264B3 #B38B64 #65B364

split-complementary

#648CB3 #B36465 #B3B264

monochromatic

#344F69 #486D92 #648CB3 #8DAAC7 #B6C9DB

Accessibility & contrast

On white

3.53

#648CB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.94

#648CB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648CB3

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648CB3	#FFFFFF	#000000	##000000
##648CB3	1.00	3.53	5.94	5.94
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.94	21.00	1.00	1.00
##000000	5.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8DB5

Deuteranopia (green-blind)

#7285B2

Tritanopia (blue-blind)

#459599

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #648cb3;
/* rgb */ color: rgb(100, 140, 179);
/* oklch */ color: oklch(62.6% 0.074 248.5);

Tailwind

colors: {
  custom: {
    50: '#94adca',
    500: '#648cb3',
    950: '#000000',
  },
}

SCSS

$custom: #648cb3;
$custom-light: #94adca;
$custom-dark: #000000;

JSON

{
  "hex": "#648cb3",
  "rgb": {
    "r": 100,
    "g": 140,
    "b": 179
  },
  "hsl": {
    "h": 209.62,
    "s": 34.199,
    "l": 54.706
  },
  "oklch": {
    "l": 0.62598,
    "c": 0.07402,
    "h": 248.5
  },
  "luminance": 0.2472
}

Semantic roles & 50–950 ramp

primary

#648CB3

secondary

#CAB9A9

accent

#935ECA

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #648CB3

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

Preview Lab → · Contrast checker → · Palette generator →