#EFF3CC#EFF3CC

#EFF3CC is a very light, muted yellow. Relative luminance 0.868; OKLCH L 95.1% C 0.051 H 112.1°. Best body text is #000000 at 18.36:1 contrast (WCAG AA passes).

Color values

HEX	#EFF3CC
RGB	rgb(239, 243, 204)
HSL	hsl(66, 62%, 88%)
HSV	hsv(66, 16%, 95%)
CMYK	cmyk(1.6%, 0%, 16%, 4.7%)
CIE-LAB	lab(94.66, -7.77, 18.40)
CIE-LCH	lch(94.66, 19.97, 112.90°)
OKLab	oklab(95.12% -0.0192 0.0474)
OKLCH	oklch(95.12% 0.051 112.1)
XYZ	xyz(78.5452, 86.8120, 69.7336)
Luminance	0.8681 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF3CC #D0CCF3

analogous

#F3E3CC #EFF3CC #DBF3CC

triadic

#EFF3CC #CCEFF3 #F3CCEF

tetradic

#EFF3CC #CCF3E3 #D0CCF3 #F3CCDB

square

#EFF3CC #CCF3E3 #D0CCF3 #F3CCDB

split-complementary

#EFF3CC #CCDBF3 #E3CCF3

monochromatic

#D0DC69 #DFE79A #EFF3CC #F7F9E6 #F7F9E6

Accessibility & contrast

On white

1.14

#EFF3CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.36

#EFF3CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF3CC

18.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF3CC	#FFFFFF	#000000	##000000
##EFF3CC	1.00	1.14	18.36	18.36
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.36	21.00	1.00	1.00
##000000	18.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F9EFCA

Deuteranopia (green-blind)

#F9F0CD

Tritanopia (blue-blind)

#F4EEE8

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #eff3cc;
/* rgb */ color: rgb(239, 243, 204);
/* oklch */ color: oklch(95.1% 0.051 112.1);

Tailwind

colors: {
  custom: {
    50: '#f4f7db',
    500: '#eff3cc',
    950: '#000000',
  },
}

SCSS

$custom: #eff3cc;
$custom-light: #f4f7db;
$custom-dark: #000000;

JSON

{
  "hex": "#eff3cc",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 204
  },
  "hsl": {
    "h": 66.154,
    "s": 61.905,
    "l": 87.647
  },
  "oklch": {
    "l": 0.95116,
    "c": 0.05111,
    "h": 112.1
  },
  "luminance": 0.86812
}

Semantic roles & 50–950 ramp

primary

#EFF3CC

secondary

#9790D3

accent

#1CCA2E

background

#FFFFFE

surface

#FEFEFB

border

#D6D6D4

text

#171715

muted

#858584

Preview Lab

Preview with #EFF3CC

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

Preview Lab → · Contrast checker → · Palette generator →