#648ECB#648ECB

#648ECB is a light, moderate blue. Relative luminance 0.264; OKLCH L 64.2% C 0.103 H 257.6°. Best body text is #000000 at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#648ECB
RGB	rgb(100, 142, 203)
HSL	hsl(216, 50%, 59%)
HSV	hsv(216, 51%, 80%)
CMYK	cmyk(50.7%, 30%, 0%, 20.4%)
CIE-LAB	lab(58.38, 2.73, -35.93)
CIE-LCH	lch(58.38, 36.03, 274.34°)
OKLab	oklab(64.17% -0.0221 -0.1009)
OKLCH	oklch(64.17% 0.103 257.6)
XYZ	xyz(25.7044, 26.3653, 60.2228)
Luminance	0.2637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648ECB #CBA164

analogous

#64C1CB #648ECB #6E64CB

triadic

#648ECB #CB648E #8ECB64

tetradic

#648ECB #CB64C1 #CBA164 #64CB6E

square

#648ECB #CB64C1 #CBA164 #64CB6E

split-complementary

#648ECB #CB6E64 #C1CB64

monochromatic

#2D5287 #3D6EB5 #648ECB #92AFDA #C0D1EA

Accessibility & contrast

On white

3.35

#648ECB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.27

#648ECB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648ECB

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648ECB	#FFFFFF	#000000	##000000
##648ECB	1.00	3.35	6.27	6.27
#FFFFFF	3.35	1.00	21.00	21.00
#000000	6.27	21.00	1.00	1.00
##000000	6.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7692CE

Deuteranopia (green-blind)

#6A88CA

Tritanopia (blue-blind)

#329BA4

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #648ecb;
/* rgb */ color: rgb(100, 142, 203);
/* oklch */ color: oklch(64.2% 0.103 257.6);

Tailwind

colors: {
  custom: {
    50: '#96aedb',
    500: '#648ecb',
    950: '#000000',
  },
}

SCSS

$custom: #648ecb;
$custom-light: #96aedb;
$custom-dark: #000000;

JSON

{
  "hex": "#648ecb",
  "rgb": {
    "r": 100,
    "g": 142,
    "b": 203
  },
  "hsl": {
    "h": 215.534,
    "s": 49.758,
    "l": 59.412
  },
  "oklch": {
    "l": 0.64173,
    "c": 0.10327,
    "h": 257.6
  },
  "luminance": 0.26367
}

Semantic roles & 50–950 ramp

primary

#648ECB

secondary

#D9C9B1

accent

#A14FD9

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #648ECB

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

Preview Lab → · Contrast checker → · Palette generator →