#64B5DC#64B5DC

#64B5DC is a light, moderate cyan. Relative luminance 0.409; OKLCH L 73.7% C 0.097 H 231.0°. Best body text is #000000 at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#64B5DC
RGB	rgb(100, 181, 220)
HSL	hsl(200, 63%, 63%)
HSV	hsv(200, 55%, 86%)
CMYK	cmyk(54.5%, 17.7%, 0%, 13.7%)
CIE-LAB	lab(70.12, -13.88, -27.17)
CIE-LCH	lch(70.12, 30.51, 242.94°)
OKLab	oklab(73.66% -0.0613 -0.0756)
OKLCH	oklch(73.66% 0.097 231)
XYZ	xyz(34.6928, 40.9213, 73.7666)
Luminance	0.4092 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B5DC #DC8B64

analogous

#64DCC7 #64B5DC #6479DC

triadic

#64B5DC #DC64B5 #B5DC64

tetradic

#64B5DC #C764DC #DC8B64 #79DC64

square

#64B5DC #C764DC #DC8B64 #79DC64

split-complementary

#64B5DC #DC6479 #DCC764

monochromatic

#2479A1 #329DD1 #64B5DC #96CDE7 #C8E5F3

Accessibility & contrast

On white

2.29

#64B5DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.18

#64B5DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B5DC

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B5DC	#FFFFFF	#000000	##000000
##64B5DC	1.00	2.29	9.18	9.18
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.18	21.00	1.00	1.00
##000000	9.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B3DE

Deuteranopia (green-blind)

#91A6DB

Tritanopia (blue-blind)

#00C0C2

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #64b5dc;
/* rgb */ color: rgb(100, 181, 220);
/* oklch */ color: oklch(73.7% 0.097 231.0);

Tailwind

colors: {
  custom: {
    50: '#99cbe7',
    500: '#64b5dc',
    950: '#000000',
  },
}

SCSS

$custom: #64b5dc;
$custom-light: #99cbe7;
$custom-dark: #000000;

JSON

{
  "hex": "#64b5dc",
  "rgb": {
    "r": 100,
    "g": 181,
    "b": 220
  },
  "hsl": {
    "h": 199.5,
    "s": 63.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.73664,
    "c": 0.09736,
    "h": 231
  },
  "luminance": 0.40924
}

Semantic roles & 50–950 ramp

primary

#64B5DC

secondary

#E4C6B8

accent

#541BCB

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #64B5DC

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

Preview Lab → · Contrast checker → · Palette generator →