#648FB3#648FB3

#648FB3 is a light, moderate cyan. Relative luminance 0.256; OKLCH L 63.3% C 0.072 H 244.5°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#648FB3
RGB	rgb(100, 143, 179)
HSL	hsl(207, 34%, 55%)
HSV	hsv(207, 44%, 70%)
CMYK	cmyk(44.1%, 20.1%, 0%, 29.8%)
CIE-LAB	lab(57.66, -4.98, -23.46)
CIE-LCH	lch(57.66, 23.98, 258.02°)
OKLab	oklab(63.28% -0.031 -0.0651)
OKLCH	oklch(63.28% 0.072 244.5)
XYZ	xyz(23.2119, 25.6074, 46.3587)
Luminance	0.2561 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648FB3 #B38864

analogous

#64B3B0 #648FB3 #6468B3

triadic

#648FB3 #B3648F #8FB364

tetradic

#648FB3 #B064B3 #B38864 #68B364

square

#648FB3 #B064B3 #B38864 #68B364

split-complementary

#648FB3 #B36468 #B3B064

monochromatic

#345169 #487092 #648FB3 #8DADC7 #B6CADB

Accessibility & contrast

On white

3.43

#648FB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#648FB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648FB3

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648FB3	#FFFFFF	#000000	##000000
##648FB3	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#808FB5

Deuteranopia (green-blind)

#7687B2

Tritanopia (blue-blind)

#44989B

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #648fb3;
/* rgb */ color: rgb(100, 143, 179);
/* oklch */ color: oklch(63.3% 0.072 244.5);

Tailwind

colors: {
  custom: {
    50: '#94afc9',
    500: '#648fb3',
    950: '#000000',
  },
}

SCSS

$custom: #648fb3;
$custom-light: #94afc9;
$custom-dark: #000000;

JSON

{
  "hex": "#648fb3",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 179
  },
  "hsl": {
    "h": 207.342,
    "s": 34.199,
    "l": 54.706
  },
  "oklch": {
    "l": 0.63277,
    "c": 0.07208,
    "h": 244.5
  },
  "luminance": 0.25609
}

Semantic roles & 50–950 ramp

primary

#648FB3

secondary

#CAB8A9

accent

#8F5ECA

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #648FB3

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

Preview Lab → · Contrast checker → · Palette generator →