#64B1EB#64B1EB

#64B1EB is a light, moderate cyan. Relative luminance 0.402; OKLCH L 73.4% C 0.114 H 242.9°. Best body text is #000000 at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#64B1EB
RGB	rgb(100, 177, 235)
HSL	hsl(206, 77%, 66%)
HSV	hsv(206, 57%, 92%)
CMYK	cmyk(57.4%, 24.7%, 0%, 7.8%)
CIE-LAB	lab(69.58, -7.20, -36.20)
CIE-LCH	lch(69.58, 36.91, 258.75°)
OKLab	oklab(73.43% -0.0518 -0.1015)
OKLCH	oklch(73.43% 0.114 242.9)
XYZ	xyz(35.9675, 40.1485, 84.4352)
Luminance	0.4015 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B1EB #EB9E64

analogous

#64EBE2 #64B1EB #646DEB

triadic

#64B1EB #EB64B1 #B1EB64

tetradic

#64B1EB #E264EB #EB9E64 #6DEB64

square

#64B1EB #E264EB #EB9E64 #6DEB64

split-complementary

#64B1EB #EB646D #EBE264

monochromatic

#1876BC #2E96E4 #64B1EB #9ACCF2 #D0E8F9

Accessibility & contrast

On white

2.33

#64B1EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.03

#64B1EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B1EB

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B1EB	#FFFFFF	#000000	##000000
##64B1EB	1.00	2.33	9.03	9.03
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.03	21.00	1.00	1.00
##000000	9.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98B2EE

Deuteranopia (green-blind)

#85A4EA

Tritanopia (blue-blind)

#00BFC5

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #64b1eb;
/* rgb */ color: rgb(100, 177, 235);
/* oklch */ color: oklch(73.4% 0.114 242.9);

Tailwind

colors: {
  custom: {
    50: '#9ac8f1',
    500: '#64b1eb',
    950: '#000000',
  },
}

SCSS

$custom: #64b1eb;
$custom-light: #9ac8f1;
$custom-dark: #000000;

JSON

{
  "hex": "#64b1eb",
  "rgb": {
    "r": 100,
    "g": 177,
    "b": 235
  },
  "hsl": {
    "h": 205.778,
    "s": 77.143,
    "l": 65.686
  },
  "oklch": {
    "l": 0.73425,
    "c": 0.11399,
    "h": 242.9
  },
  "luminance": 0.40152
}

Semantic roles & 50–950 ramp

primary

#64B1EB

secondary

#ECD2BF

accent

#640CD9

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #64B1EB

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

Preview Lab → · Contrast checker → · Palette generator →