#EFFB5F#EFFB5F

#EFFB5F is a very light, vivid yellow. Relative luminance 0.882; OKLCH L 95.1% C 0.176 H 113.4°. Best body text is #000000 at 18.63:1 contrast (WCAG AA passes).

Color values

HEX	#EFFB5F
RGB	rgb(239, 251, 95)
HSL	hsl(65, 95%, 68%)
HSV	hsv(65, 62%, 98%)
CMYK	cmyk(4.8%, 0%, 62.2%, 1.6%)
CIE-LAB	lab(95.23, -23.32, 70.90)
CIE-LCH	lch(95.23, 74.64, 108.21°)
OKLab	oklab(95.09% -0.0699 0.1612)
OKLCH	oklch(95.09% 0.176 113.4)
XYZ	xyz(72.1612, 88.1727, 24.0419)
Luminance	0.8817 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFB5F #6B5FFB

analogous

#FBB95F #EFFB5F #A1FB5F

triadic

#EFFB5F #5FEFFB #FB5FEF

tetradic

#EFFB5F #5FFBB9 #6B5FFB #FB5FA1

square

#EFFB5F #5FFBB9 #6B5FFB #FB5FA1

split-complementary

#EFFB5F #5FA1FB #B95FFB

monochromatic

#CADA05 #E9FA23 #EFFB5F #F5FC9B #FBFED6

Accessibility & contrast

On white

1.13

#EFFB5F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.63

#EFFB5F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFB5F

18.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFB5F	#FFFFFF	#000000	##000000
##EFFB5F	1.00	1.13	18.63	18.63
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.63	21.00	1.00	1.00
##000000	18.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF04B

Deuteranopia (green-blind)

#FFF369

Tritanopia (blue-blind)

#FEEDDB

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #effb5f;
/* rgb */ color: rgb(239, 251, 95);
/* oklch */ color: oklch(95.1% 0.176 113.4);

Tailwind

colors: {
  custom: {
    50: '#f7fc93',
    500: '#effb5f',
    950: '#000000',
  },
}

SCSS

$custom: #effb5f;
$custom-light: #f7fc93;
$custom-dark: #000000;

JSON

{
  "hex": "#effb5f",
  "rgb": {
    "r": 239,
    "g": 251,
    "b": 95
  },
  "hsl": {
    "h": 64.615,
    "s": 95.122,
    "l": 67.843
  },
  "oklch": {
    "l": 0.95087,
    "c": 0.17571,
    "h": 113.4
  },
  "luminance": 0.88171
}

Semantic roles & 50–950 ramp

primary

#EFFB5F

secondary

#372AD4

accent

#00E612

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFFB5F

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

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