#648EB5#648EB5

#648EB5 is a light, moderate cyan. Relative luminance 0.254; OKLCH L 63.1% C 0.075 H 247.3°. Best body text is #000000 at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#648EB5
RGB	rgb(100, 142, 181)
HSL	hsl(209, 35%, 55%)
HSV	hsv(209, 45%, 71%)
CMYK	cmyk(44.8%, 21.5%, 0%, 29%)
CIE-LAB	lab(57.45, -3.83, -24.91)
CIE-LCH	lch(57.45, 25.21, 261.25°)
OKLab	oklab(63.14% -0.029 -0.0692)
OKLCH	oklch(63.14% 0.075 247.3)
XYZ	xyz(23.2662, 25.3900, 47.3819)
Luminance	0.2539 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648EB5 #B58B64

analogous

#64B5B3 #648EB5 #6465B5

triadic

#648EB5 #B5648E #8EB564

tetradic

#648EB5 #B364B5 #B58B64 #65B564

square

#648EB5 #B364B5 #B58B64 #65B564

split-complementary

#648EB5 #B56465 #B5B364

monochromatic

#33506B #476F95 #648EB5 #8DACC9 #B7CADD

Accessibility & contrast

On white

3.45

#648EB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.08

#648EB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648EB5

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648EB5	#FFFFFF	#000000	##000000
##648EB5	1.00	3.45	6.08	6.08
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.08	21.00	1.00	1.00
##000000	6.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8FB7

Deuteranopia (green-blind)

#7486B4

Tritanopia (blue-blind)

#43979B

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #648eb5;
/* rgb */ color: rgb(100, 142, 181);
/* oklch */ color: oklch(63.1% 0.075 247.3);

Tailwind

colors: {
  custom: {
    50: '#94afcb',
    500: '#648eb5',
    950: '#000000',
  },
}

SCSS

$custom: #648eb5;
$custom-light: #94afcb;
$custom-dark: #000000;

JSON

{
  "hex": "#648eb5",
  "rgb": {
    "r": 100,
    "g": 142,
    "b": 181
  },
  "hsl": {
    "h": 208.889,
    "s": 35.371,
    "l": 55.098
  },
  "oklch": {
    "l": 0.63139,
    "c": 0.07507,
    "h": 247.3
  },
  "luminance": 0.25392
}

Semantic roles & 50–950 ramp

primary

#648EB5

secondary

#CBBAA9

accent

#925CCB

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #648EB5

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

Preview Lab → · Contrast checker → · Palette generator →