#648BB1#648BB1

#648BB1 is a light, moderate cyan. Relative luminance 0.243; OKLCH L 62.3% C 0.072 H 248.4°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#648BB1
RGB	rgb(100, 139, 177)
HSL	hsl(210, 33%, 54%)
HSV	hsv(210, 44%, 69%)
CMYK	cmyk(43.5%, 21.5%, 0%, 30.6%)
CIE-LAB	lab(56.43, -3.27, -24.20)
CIE-LCH	lch(56.43, 24.42, 262.30°)
OKLab	oklab(62.28% -0.0266 -0.0672)
OKLCH	oklch(62.28% 0.072 248.4)
XYZ	xyz(22.4213, 24.3475, 45.1045)
Luminance	0.2435 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BB1 #B18A64

analogous

#64B1B0 #648BB1 #6465B1

triadic

#648BB1 #B1648B #8BB164

tetradic

#648BB1 #B064B1 #B18A64 #65B164

square

#648BB1 #B064B1 #B18A64 #65B164

split-complementary

#648BB1 #B16465 #B1B064

monochromatic

#344E67 #486C90 #648BB1 #8DA9C5 #B5C8DA

Accessibility & contrast

On white

3.58

#648BB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#648BB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BB1

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BB1	#FFFFFF	#000000	##000000
##648BB1	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8CB3

Deuteranopia (green-blind)

#7284B0

Tritanopia (blue-blind)

#469498

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #648bb1;
/* rgb */ color: rgb(100, 139, 177);
/* oklch */ color: oklch(62.3% 0.072 248.4);

Tailwind

colors: {
  custom: {
    50: '#93acc8',
    500: '#648bb1',
    950: '#000000',
  },
}

SCSS

$custom: #648bb1;
$custom-light: #93acc8;
$custom-dark: #000000;

JSON

{
  "hex": "#648bb1",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 177
  },
  "hsl": {
    "h": 209.61,
    "s": 33.047,
    "l": 54.314
  },
  "oklch": {
    "l": 0.62283,
    "c": 0.07228,
    "h": 248.4
  },
  "luminance": 0.24349
}

Semantic roles & 50–950 ramp

primary

#648BB1

secondary

#C9B8A8

accent

#935FC9

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #648BB1

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

Preview Lab → · Contrast checker → · Palette generator →