#ECF3FD#ECF3FD

#ECF3FD is a very light, near-neutral blue. Relative luminance 0.890; OKLCH L 96.2% C 0.015 H 257.2°. Best body text is #000000 at 18.81:1 contrast (WCAG AA passes).

Color values

HEX	#ECF3FD
RGB	rgb(236, 243, 253)
HSL	hsl(215, 81%, 96%)
HSV	hsv(215, 7%, 99%)
CMYK	cmyk(6.7%, 4%, 0%, 0.8%)
CIE-LAB	lab(95.59, -0.47, -5.60)
CIE-LCH	lch(95.59, 5.62, 265.22°)
OKLab	oklab(96.18% -0.0034 -0.015)
OKLCH	oklch(96.18% 0.015 257.2)
XYZ	xyz(84.3687, 89.0253, 105.6482)
Luminance	0.8903 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF3FD #FDF6EC

analogous

#ECFBFD #ECF3FD #EDECFD

triadic

#ECF3FD #FDECF3 #F3FDEC

tetradic

#ECF3FD #FDECFB #FDF6EC #ECFDED

square

#ECF3FD #FDECFB #FDF6EC #ECFDED

split-complementary

#ECF3FD #FDEDEC #FBFDEC

monochromatic

#7DADF1 #B5D0F7 #E3EEFC #E3EEFC #E3EEFC

Accessibility & contrast

On white

1.12

#ECF3FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.81

#ECF3FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF3FD

18.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF3FD	#FFFFFF	#000000	##000000
##ECF3FD	1.00	1.12	18.81	18.81
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.81	21.00	1.00	1.00
##000000	18.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0F3FE

Deuteranopia (green-blind)

#EEF2FD

Tritanopia (blue-blind)

#E8F5F6

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #ecf3fd;
/* rgb */ color: rgb(236, 243, 253);
/* oklch */ color: oklch(96.2% 0.015 257.2);

Tailwind

colors: {
  custom: {
    50: '#f2f7fe',
    500: '#ecf3fd',
    950: '#000000',
  },
}

SCSS

$custom: #ecf3fd;
$custom-light: #f2f7fe;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf3fd",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 253
  },
  "hsl": {
    "h": 215.294,
    "s": 80.952,
    "l": 95.882
  },
  "oklch": {
    "l": 0.96178,
    "c": 0.01537,
    "h": 257.2
  },
  "luminance": 0.89026
}

Semantic roles & 50–950 ramp

primary

#ECF3FD

secondary

#E7CCA7

accent

#8608DD

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#161717

muted

#858585

Preview Lab

Preview with #ECF3FD

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

Preview Lab → · Contrast checker → · Palette generator →