#EFFBFF#EFFBFF

#EFFBFF is a very light, near-neutral cyan. Relative luminance 0.946; OKLCH L 98.0% C 0.014 H 219.6°. Best body text is #000000 at 19.91:1 contrast (WCAG AA passes).

Color values

HEX	#EFFBFF
RGB	rgb(239, 251, 255)
HSL	hsl(195, 100%, 97%)
HSV	hsv(195, 6%, 100%)
CMYK	cmyk(6.3%, 1.6%, 0%, 0%)
CIE-LAB	lab(97.86, -3.19, -3.27)
CIE-LCH	lch(97.86, 4.57, 225.73°)
OKLab	oklab(98.03% -0.0106 -0.0088)
OKLCH	oklch(98.03% 0.014 219.6)
XYZ	xyz(88.1401, 94.5643, 108.1975)
Luminance	0.9456 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFBFF #FFF3EF

analogous

#EFFFFB #EFFBFF #EFF3FF

triadic

#EFFBFF #FFEFFB #FBFFEF

tetradic

#EFFBFF #FBEFFF #FFF3EF #F3FFEF

square

#EFFBFF #FBEFFF #FFF3EF #F3FFEF

split-complementary

#EFFBFF #FFEFF3 #FFFBEF

monochromatic

#75DCFF #B2ECFF #E0F7FF #E0F7FF #E0F7FF

Accessibility & contrast

On white

1.05

#EFFBFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.91

#EFFBFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFBFF

19.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFBFF	#FFFFFF	#000000	##000000
##EFFBFF	1.00	1.05	19.91	19.91
#FFFFFF	1.05	1.00	21.00	21.00
#000000	19.91	21.00	1.00	1.00
##000000	19.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F8FAFF

Deuteranopia (green-blind)

#F6F8FF

Tritanopia (blue-blind)

#EBFDFC

Achromatopsia (no color)

#F9F9F9

Design tokens & code

CSS

--color: #effbff;
/* rgb */ color: rgb(239, 251, 255);
/* oklch */ color: oklch(98.0% 0.014 219.6);

Tailwind

colors: {
  custom: {
    50: '#f4fcff',
    500: '#effbff',
    950: '#000000',
  },
}

SCSS

$custom: #effbff;
$custom-light: #f4fcff;
$custom-dark: #000000;

JSON

{
  "hex": "#effbff",
  "rgb": {
    "r": 239,
    "g": 251,
    "b": 255
  },
  "hsl": {
    "h": 195,
    "s": 100,
    "l": 96.863
  },
  "oklch": {
    "l": 0.98032,
    "c": 0.01376,
    "h": 219.6
  },
  "luminance": 0.94565
}

Semantic roles & 50–950 ramp

primary

#EFFBFF

secondary

#EFB6A3

accent

#3900E6

background

#FFFFFF

surface

#FEFFFF

border

#D6D7D7

text

#171718

muted

#858586

Preview Lab

Preview with #EFFBFF

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

Preview Lab → · Contrast checker → · Palette generator →