#EFF5FF#EFF5FF

#EFF5FF is a very light, near-neutral blue. Relative luminance 0.909; OKLCH L 96.9% C 0.015 H 260.7°. Best body text is #000000 at 19.18:1 contrast (WCAG AA passes).

Color values

HEX	#EFF5FF
RGB	rgb(239, 245, 255)
HSL	hsl(218, 100%, 97%)
HSV	hsv(218, 6%, 100%)
CMYK	cmyk(6.3%, 3.9%, 0%, 0%)
CIE-LAB	lab(96.36, -0.15, -5.48)
CIE-LCH	lch(96.36, 5.48, 268.46°)
OKLab	oklab(96.85% -0.0024 -0.0146)
OKLCH	oklch(96.85% 0.015 260.7)
XYZ	xyz(86.2954, 90.8750, 107.5826)
Luminance	0.9088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF5FF #FFF9EF

analogous

#EFFDFF #EFF5FF #F1EFFF

triadic

#EFF5FF #FFEFF5 #F5FFEF

tetradic

#EFF5FF #FFEFFD #FFF9EF #EFFFF1

square

#EFF5FF #FFEFFD #FFF9EF #EFFFF1

split-complementary

#EFF5FF #FFF1EF #FDFFEF

monochromatic

#75A9FF #B2CFFF #E0ECFF #E0ECFF #E0ECFF

Accessibility & contrast

On white

1.10

#EFF5FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.18

#EFF5FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF5FF

19.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF5FF	#FFFFFF	#000000	##000000
##EFF5FF	1.00	1.10	19.18	19.18
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.18	21.00	1.00	1.00
##000000	19.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2F5FF

Deuteranopia (green-blind)

#F0F4FF

Tritanopia (blue-blind)

#ECF7F8

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #eff5ff;
/* rgb */ color: rgb(239, 245, 255);
/* oklch */ color: oklch(96.9% 0.015 260.7);

Tailwind

colors: {
  custom: {
    50: '#f4f8ff',
    500: '#eff5ff',
    950: '#000000',
  },
}

SCSS

$custom: #eff5ff;
$custom-light: #f4f8ff;
$custom-dark: #000000;

JSON

{
  "hex": "#eff5ff",
  "rgb": {
    "r": 239,
    "g": 245,
    "b": 255
  },
  "hsl": {
    "h": 217.5,
    "s": 100,
    "l": 96.863
  },
  "oklch": {
    "l": 0.96852,
    "c": 0.01484,
    "h": 260.7
  },
  "luminance": 0.90876
}

Semantic roles & 50–950 ramp

primary

#EFF5FF

secondary

#EFD3A3

accent

#8F00E6

background

#FFFFFF

surface

#FEFEFF

border

#D6D6D7

text

#171718

muted

#858586

Preview Lab

Preview with #EFF5FF

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

Preview Lab → · Contrast checker → · Palette generator →