#64B7EB#64B7EB

#64B7EB is a light, moderate cyan. Relative luminance 0.426; OKLCH L 74.8% C 0.111 H 238.2°. Best body text is #000000 at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#64B7EB
RGB	rgb(100, 183, 235)
HSL	hsl(203, 77%, 66%)
HSV	hsv(203, 57%, 92%)
CMYK	cmyk(57.4%, 22.1%, 0%, 7.8%)
CIE-LAB	lab(71.26, -10.46, -33.59)
CIE-LCH	lch(71.26, 35.18, 252.70°)
OKLab	oklab(74.76% -0.0583 -0.094)
OKLCH	oklch(74.76% 0.111 238.2)
XYZ	xyz(37.1788, 42.5710, 84.8389)
Luminance	0.4257 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B7EB #EB9864

analogous

#64EBDB #64B7EB #6473EB

triadic

#64B7EB #EB64B7 #B7EB64

tetradic

#64B7EB #DB64EB #EB9864 #73EB64

square

#64B7EB #DB64EB #EB9864 #73EB64

split-complementary

#64B7EB #EB6473 #EBDB64

monochromatic

#187DBC #2E9EE4 #64B7EB #9AD0F2 #D0E9F9

Accessibility & contrast

On white

2.21

#64B7EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.51

#64B7EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B7EB

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B7EB	#FFFFFF	#000000	##000000
##64B7EB	1.00	2.21	9.51	9.51
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.51	21.00	1.00	1.00
##000000	9.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB6ED

Deuteranopia (green-blind)

#8DA8EA

Tritanopia (blue-blind)

#00C4C8

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #64b7eb;
/* rgb */ color: rgb(100, 183, 235);
/* oklch */ color: oklch(74.8% 0.111 238.2);

Tailwind

colors: {
  custom: {
    50: '#9accf1',
    500: '#64b7eb',
    950: '#000000',
  },
}

SCSS

$custom: #64b7eb;
$custom-light: #9accf1;
$custom-dark: #000000;

JSON

{
  "hex": "#64b7eb",
  "rgb": {
    "r": 100,
    "g": 183,
    "b": 235
  },
  "hsl": {
    "h": 203.111,
    "s": 77.143,
    "l": 65.686
  },
  "oklch": {
    "l": 0.74761,
    "c": 0.11058,
    "h": 238.2
  },
  "luminance": 0.42574
}

Semantic roles & 50–950 ramp

primary

#64B7EB

secondary

#ECD0BF

accent

#5B0CD9

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #64B7EB

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

Preview Lab → · Contrast checker → · Palette generator →