#64B3CB#64B3CB

#64B3CB is a light, moderate cyan. Relative luminance 0.393; OKLCH L 72.5% C 0.085 H 219.8°. Best body text is #000000 at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#64B3CB
RGB	rgb(100, 179, 203)
HSL	hsl(194, 50%, 59%)
HSV	hsv(194, 51%, 80%)
CMYK	cmyk(50.7%, 11.8%, 0%, 20.4%)
CIE-LAB	lab(68.94, -17.73, -19.66)
CIE-LCH	lch(68.94, 26.47, 227.95°)
OKLab	oklab(72.52% -0.0654 -0.0544)
OKLCH	oklch(72.52% 0.085 219.8)
XYZ	xyz(32.1510, 39.2586, 62.3717)
Luminance	0.3926 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B3CB #CB7C64

analogous

#64CBB0 #64B3CB #6480CB

triadic

#64B3CB #CB64B3 #B3CB64

tetradic

#64B3CB #B064CB #CB7C64 #80CB64

square

#64B3CB #B064CB #CB7C64 #80CB64

split-complementary

#64B3CB #CB6480 #CBB064

monochromatic

#2D7287 #3D99B5 #64B3CB #92C9DA #C0E0EA

Accessibility & contrast

On white

2.37

#64B3CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.85

#64B3CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B3CB

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B3CB	#FFFFFF	#000000	##000000
##64B3CB	1.00	2.37	8.85	8.85
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.85	21.00	1.00	1.00
##000000	8.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4AFCC

Deuteranopia (green-blind)

#95A3CB

Tritanopia (blue-blind)

#25BBBA

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #64b3cb;
/* rgb */ color: rgb(100, 179, 203);
/* oklch */ color: oklch(72.5% 0.085 219.8);

Tailwind

colors: {
  custom: {
    50: '#97c9da',
    500: '#64b3cb',
    950: '#000000',
  },
}

SCSS

$custom: #64b3cb;
$custom-light: #97c9da;
$custom-dark: #000000;

JSON

{
  "hex": "#64b3cb",
  "rgb": {
    "r": 100,
    "g": 179,
    "b": 203
  },
  "hsl": {
    "h": 193.981,
    "s": 49.758,
    "l": 59.412
  },
  "oklch": {
    "l": 0.7252,
    "c": 0.08504,
    "h": 219.8
  },
  "luminance": 0.39261
}

Semantic roles & 50–950 ramp

primary

#64B3CB

secondary

#D9BBB1

accent

#6F4FD9

background

#F9FCFD

surface

#F2F8FA

border

#CCD1D3

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #64B3CB

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

Preview Lab → · Contrast checker → · Palette generator →