#EFFECB#EFFECB

#EFFECB is a very light, moderate yellow-green. Relative luminance 0.935; OKLCH L 97.3% C 0.068 H 121.0°. Best body text is #000000 at 19.71:1 contrast (WCAG AA passes).

Color values

HEX	#EFFECB
RGB	rgb(239, 254, 203)
HSL	hsl(78, 96%, 90%)
HSV	hsv(78, 20%, 100%)
CMYK	cmyk(5.9%, 0%, 20.1%, 0.4%)
CIE-LAB	lab(97.45, -13.37, 22.80)
CIE-LCH	lch(97.45, 26.43, 120.40°)
OKLab	oklab(97.32% -0.035 0.0583)
OKLCH	oklch(97.32% 0.068 121)
XYZ	xyz(81.8167, 93.5462, 70.2343)
Luminance	0.9355 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFECB #DACBFE

analogous

#FEF4CB #EFFECB #D6FECB

triadic

#EFFECB #CBEFFE #FECBEF

tetradic

#EFFECB #CBFEF4 #DACBFE #FECBD6

square

#EFFECB #CBFEF4 #DACBFE #FECBD6

split-complementary

#EFFECB #CBD6FE #F4CBFE

monochromatic

#CAFC53 #DDFD8F #EFFECB #F6FEE1 #F6FEE1

Accessibility & contrast

On white

1.07

#EFFECB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.71

#EFFECB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFECB

19.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFECB	#FFFFFF	#000000	##000000
##EFFECB	1.00	1.07	19.71	19.71
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.71	21.00	1.00	1.00
##000000	19.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF8C8

Deuteranopia (green-blind)

#FFF8CD

Tritanopia (blue-blind)

#F4F9F0

Achromatopsia (no color)

#F8F8F8

Design tokens & code

CSS

--color: #effecb;
/* rgb */ color: rgb(239, 254, 203);
/* oklch */ color: oklch(97.3% 0.068 121.0);

Tailwind

colors: {
  custom: {
    50: '#f4fedb',
    500: '#effecb',
    950: '#000000',
  },
}

SCSS

$custom: #effecb;
$custom-light: #f4fedb;
$custom-dark: #000000;

JSON

{
  "hex": "#effecb",
  "rgb": {
    "r": 239,
    "g": 254,
    "b": 203
  },
  "hsl": {
    "h": 77.647,
    "s": 96.226,
    "l": 89.608
  },
  "oklch": {
    "l": 0.97321,
    "c": 0.06797,
    "h": 121
  },
  "luminance": 0.93546
}

Semantic roles & 50–950 ramp

primary

#EFFECB

secondary

#A386E7

accent

#00E643

background

#FFFFFE

surface

#FEFFFB

border

#D6D7D4

text

#171715

muted

#858584

Preview Lab

Preview with #EFFECB

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

Preview Lab → · Contrast checker → · Palette generator →