#64B5EE#64B5EE

#64B5EE is a light, moderate cyan. Relative luminance 0.419; OKLCH L 74.5% C 0.115 H 241.3°. Best body text is #000000 at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#64B5EE
RGB	rgb(100, 181, 238)
HSL	hsl(205, 80%, 66%)
HSV	hsv(205, 58%, 93%)
CMYK	cmyk(58%, 23.9%, 0%, 6.7%)
CIE-LAB	lab(70.82, -8.47, -35.90)
CIE-LCH	lch(70.82, 36.89, 256.73°)
OKLab	oklab(74.45% -0.0552 -0.1006)
OKLCH	oklch(74.45% 0.115 241.3)
XYZ	xyz(37.2063, 41.9267, 87.0043)
Luminance	0.4193 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B5EE #EE9D64

analogous

#64EEE2 #64B5EE #6470EE

triadic

#64B5EE #EE64B5 #B5EE64

tetradic

#64B5EE #E264EE #EE9D64 #70EE64

square

#64B5EE #E264EE #EE9D64 #70EE64

split-complementary

#64B5EE #EE6470 #EEE264

monochromatic

#157BC2 #2D9BE8 #64B5EE #9BCFF4 #D2EAFA

Accessibility & contrast

On white

2.24

#64B5EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.39

#64B5EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B5EE

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B5EE	#FFFFFF	#000000	##000000
##64B5EE	1.00	2.24	9.39	9.39
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.39	21.00	1.00	1.00
##000000	9.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CB5F1

Deuteranopia (green-blind)

#89A7ED

Tritanopia (blue-blind)

#00C3C8

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #64b5ee;
/* rgb */ color: rgb(100, 181, 238);
/* oklch */ color: oklch(74.5% 0.115 241.3);

Tailwind

colors: {
  custom: {
    50: '#9acbf3',
    500: '#64b5ee',
    950: '#000000',
  },
}

SCSS

$custom: #64b5ee;
$custom-light: #9acbf3;
$custom-dark: #000000;

JSON

{
  "hex": "#64b5ee",
  "rgb": {
    "r": 100,
    "g": 181,
    "b": 238
  },
  "hsl": {
    "h": 204.783,
    "s": 80.233,
    "l": 66.275
  },
  "oklch": {
    "l": 0.7445,
    "c": 0.11476,
    "h": 241.3
  },
  "luminance": 0.4193
}

Semantic roles & 50–950 ramp

primary

#64B5EE

secondary

#EDD3C0

accent

#6009DD

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #64B5EE

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

Preview Lab → · Contrast checker → · Palette generator →