#648BB4#648BB4

#648BB4 is a light, moderate cyan. Relative luminance 0.245; OKLCH L 62.4% C 0.076 H 250.3°. Best body text is #000000 at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#648BB4
RGB	rgb(100, 139, 180)
HSL	hsl(211, 35%, 55%)
HSV	hsv(211, 44%, 71%)
CMYK	cmyk(44.4%, 22.8%, 0%, 29.4%)
CIE-LAB	lab(56.55, -2.41, -25.73)
CIE-LCH	lch(56.55, 25.84, 264.66°)
OKLab	oklab(62.42% -0.0256 -0.0716)
OKLCH	oklch(62.42% 0.076 250.3)
XYZ	xyz(22.7236, 24.4684, 46.6966)
Luminance	0.2447 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BB4 #B48D64

analogous

#64B3B4 #648BB4 #6564B4

triadic

#648BB4 #B4648B #8BB464

tetradic

#648BB4 #B464B3 #B48D64 #64B465

square

#648BB4 #B464B3 #B48D64 #64B465

split-complementary

#648BB4 #B46564 #B3B464

monochromatic

#334E6A #476C93 #648BB4 #8DAAC8 #B6C9DC

Accessibility & contrast

On white

3.56

#648BB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.89

#648BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BB4

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BB4	#FFFFFF	#000000	##000000
##648BB4	1.00	3.56	5.89	5.89
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.89	21.00	1.00	1.00
##000000	5.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8CB6

Deuteranopia (green-blind)

#7184B3

Tritanopia (blue-blind)

#449499

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #648bb4;
/* rgb */ color: rgb(100, 139, 180);
/* oklch */ color: oklch(62.4% 0.076 250.3);

Tailwind

colors: {
  custom: {
    50: '#94acca',
    500: '#648bb4',
    950: '#000000',
  },
}

SCSS

$custom: #648bb4;
$custom-light: #94acca;
$custom-dark: #000000;

JSON

{
  "hex": "#648bb4",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 180
  },
  "hsl": {
    "h": 210.75,
    "s": 34.783,
    "l": 54.902
  },
  "oklch": {
    "l": 0.62417,
    "c": 0.076,
    "h": 250.3
  },
  "luminance": 0.2447
}

Semantic roles & 50–950 ramp

primary

#648BB4

secondary

#CBBAA9

accent

#955DCB

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #648BB4

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

Preview Lab → · Contrast checker → · Palette generator →