#648BB5#648BB5

#648BB5 is a light, moderate cyan. Relative luminance 0.245; OKLCH L 62.5% C 0.077 H 250.9°. Best body text is #000000 at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#648BB5
RGB	rgb(100, 139, 181)
HSL	hsl(211, 35%, 55%)
HSV	hsv(211, 45%, 71%)
CMYK	cmyk(44.8%, 23.2%, 0%, 29%)
CIE-LAB	lab(56.59, -2.12, -26.24)
CIE-LCH	lch(56.59, 26.32, 265.39°)
OKLab	oklab(62.46% -0.0252 -0.073)
OKLCH	oklch(62.46% 0.077 250.9)
XYZ	xyz(22.8259, 24.5093, 47.2351)
Luminance	0.2451 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648BB5 #B58E64

analogous

#64B3B5 #648BB5 #6564B5

triadic

#648BB5 #B5648B #8BB564

tetradic

#648BB5 #B564B3 #B58E64 #64B565

square

#648BB5 #B564B3 #B58E64 #64B565

split-complementary

#648BB5 #B56564 #B3B564

monochromatic

#334E6B #476C95 #648BB5 #8DAAC9 #B7C9DD

Accessibility & contrast

On white

3.56

#648BB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.90

#648BB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648BB5

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648BB5	#FFFFFF	#000000	##000000
##648BB5	1.00	3.56	5.90	5.90
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.90	21.00	1.00	1.00
##000000	5.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8CB7

Deuteranopia (green-blind)

#7184B4

Tritanopia (blue-blind)

#449599

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #648bb5;
/* rgb */ color: rgb(100, 139, 181);
/* oklch */ color: oklch(62.5% 0.077 250.9);

Tailwind

colors: {
  custom: {
    50: '#94accb',
    500: '#648bb5',
    950: '#000000',
  },
}

SCSS

$custom: #648bb5;
$custom-light: #94accb;
$custom-dark: #000000;

JSON

{
  "hex": "#648bb5",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 181
  },
  "hsl": {
    "h": 211.111,
    "s": 35.371,
    "l": 55.098
  },
  "oklch": {
    "l": 0.62462,
    "c": 0.07726,
    "h": 250.9
  },
  "luminance": 0.24511
}

Semantic roles & 50–950 ramp

primary

#648BB5

secondary

#CBBBA9

accent

#965CCB

background

#F9FAFC

surface

#F2F4F8

border

#CCCED1

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #648BB5

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

Preview Lab → · Contrast checker → · Palette generator →