#EFFB7B#EFFB7B

#EFFB7B is a very light, vivid yellow. Relative luminance 0.888; OKLCH L 95.4% C 0.152 H 113.7°. Best body text is #000000 at 18.76:1 contrast (WCAG AA passes).

Color values

HEX	#EFFB7B
RGB	rgb(239, 251, 123)
HSL	hsl(66, 94%, 73%)
HSV	hsv(66, 51%, 98%)
CMYK	cmyk(4.8%, 0%, 51%, 1.6%)
CIE-LAB	lab(95.49, -21.26, 59.26)
CIE-LCH	lch(95.49, 62.96, 109.73°)
OKLab	oklab(95.37% -0.0613 0.1395)
OKLCH	oklch(95.37% 0.152 113.7)
XYZ	xyz(73.6703, 88.7763, 31.9897)
Luminance	0.8878 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFB7B #877BFB

analogous

#FBC77B #EFFB7B #AFFB7B

triadic

#EFFB7B #7BEFFB #FB7BEF

tetradic

#EFFB7B #7BFBC7 #877BFB #FB7BAF

square

#EFFB7B #7BFBC7 #877BFB #FB7BAF

split-complementary

#EFFB7B #7BAFFB #C77BFB

monochromatic

#DEF407 #E8F940 #EFFB7B #F6FDB6 #FBFEE1

Accessibility & contrast

On white

1.12

#EFFB7B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.76

#EFFB7B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFB7B

18.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFB7B	#FFFFFF	#000000	##000000
##EFFB7B	1.00	1.12	18.76	18.76
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.76	21.00	1.00	1.00
##000000	18.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF16F

Deuteranopia (green-blind)

#FFF382

Tritanopia (blue-blind)

#FCEFDE

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #effb7b;
/* rgb */ color: rgb(239, 251, 123);
/* oklch */ color: oklch(95.4% 0.152 113.7);

Tailwind

colors: {
  custom: {
    50: '#f6fca4',
    500: '#effb7b',
    950: '#000000',
  },
}

SCSS

$custom: #effb7b;
$custom-light: #f6fca4;
$custom-dark: #000000;

JSON

{
  "hex": "#effb7b",
  "rgb": {
    "r": 239,
    "g": 251,
    "b": 123
  },
  "hsl": {
    "h": 65.625,
    "s": 94.118,
    "l": 73.333
  },
  "oklch": {
    "l": 0.95371,
    "c": 0.1524,
    "h": 113.7
  },
  "luminance": 0.88775
}

Semantic roles & 50–950 ramp

primary

#EFFB7B

secondary

#5042D8

accent

#00E616

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFB7B

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

Preview Lab → · Contrast checker → · Palette generator →