#EFFC77#EFFC77

#EFFC77 is a very light, vivid yellow. Relative luminance 0.893; OKLCH L 95.5% C 0.157 H 114.0°. Best body text is #000000 at 18.86:1 contrast (WCAG AA passes).

Color values

HEX	#EFFC77
RGB	rgb(239, 252, 119)
HSL	hsl(66, 96%, 73%)
HSV	hsv(66, 53%, 99%)
CMYK	cmyk(5.2%, 0%, 52.8%, 1.2%)
CIE-LAB	lab(95.71, -22.07, 61.31)
CIE-LCH	lch(95.71, 65.16, 109.80°)
OKLab	oklab(95.53% -0.064 0.1436)
OKLCH	oklch(95.53% 0.157 114)
XYZ	xyz(73.7382, 89.3046, 30.8022)
Luminance	0.8930 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFC77 #8477FC

analogous

#FCC777 #EFFC77 #ACFC77

triadic

#EFFC77 #77EFFC #FC77EF

tetradic

#EFFC77 #77FCC7 #8477FC #FC77AC

square

#EFFC77 #77FCC7 #8477FC #FC77AC

split-complementary

#EFFC77 #77ACFC #C777FC

monochromatic

#DCF305 #E8FB3B #EFFC77 #F6FDB3 #FBFEE1

Accessibility & contrast

On white

1.11

#EFFC77 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.86

#EFFC77 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFC77

18.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFC77	#FFFFFF	#000000	##000000
##EFFC77	1.00	1.11	18.86	18.86
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.86	21.00	1.00	1.00
##000000	18.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF16A

Deuteranopia (green-blind)

#FFF47E

Tritanopia (blue-blind)

#FCEFDE

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effc77;
/* rgb */ color: rgb(239, 252, 119);
/* oklch */ color: oklch(95.5% 0.157 114.0);

Tailwind

colors: {
  custom: {
    50: '#f6fda2',
    500: '#effc77',
    950: '#000000',
  },
}

SCSS

$custom: #effc77;
$custom-light: #f6fda2;
$custom-dark: #000000;

JSON

{
  "hex": "#effc77",
  "rgb": {
    "r": 239,
    "g": 252,
    "b": 119
  },
  "hsl": {
    "h": 65.865,
    "s": 95.683,
    "l": 72.745
  },
  "oklch": {
    "l": 0.95534,
    "c": 0.15719,
    "h": 114
  },
  "luminance": 0.89303
}

Semantic roles & 50–950 ramp

primary

#EFFC77

secondary

#4D3ED9

accent

#00E616

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFC77

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

Preview Lab → · Contrast checker → · Palette generator →