#EFEC43#EFEC43

#EFEC43 is a very light, vivid yellow. Relative luminance 0.787; OKLCH L 91.7% C 0.179 H 108.4°. Best body text is #000000 at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#EFEC43
RGB	rgb(239, 236, 67)
HSL	hsl(59, 84%, 60%)
HSV	hsv(59, 72%, 94%)
CMYK	cmyk(0%, 1.3%, 72%, 6.3%)
CIE-LAB	lab(91.12, -17.61, 77.00)
CIE-LCH	lch(91.12, 78.98, 102.88°)
OKLab	oklab(91.74% -0.0565 0.1697)
OKLCH	oklch(91.74% 0.179 108.4)
XYZ	xyz(66.6077, 78.7490, 17.0005)
Luminance	0.7875 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEC43 #4346EF

analogous

#EF9643 #EFEC43 #9CEF43

triadic

#EFEC43 #43EFEC #EC43EF

tetradic

#EFEC43 #43EF96 #4346EF #EF439C

square

#EFEC43 #43EF96 #4346EF #EF439C

split-complementary

#EFEC43 #439CEF #9643EF

monochromatic

#A9A60E #E2DE13 #EFEC43 #F4F27B #F9F7B4

Accessibility & contrast

On white

1.25

#EFEC43 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.75

#EFEC43 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEC43

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEC43	#FFFFFF	#000000	##000000
##EFEC43	1.00	1.25	16.75	16.75
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.75	21.00	1.00	1.00
##000000	16.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE221

Deuteranopia (green-blind)

#FFE850

Tritanopia (blue-blind)

#FFDDCC

Achromatopsia (no color)

#E6E6E6

Design tokens & code

CSS

--color: #efec43;
/* rgb */ color: rgb(239, 236, 67);
/* oklch */ color: oklch(91.7% 0.179 108.4);

Tailwind

colors: {
  custom: {
    50: '#f8f183',
    500: '#efec43',
    950: '#000000',
  },
}

SCSS

$custom: #efec43;
$custom-light: #f8f183;
$custom-dark: #000000;

JSON

{
  "hex": "#efec43",
  "rgb": {
    "r": 239,
    "g": 236,
    "b": 67
  },
  "hsl": {
    "h": 58.953,
    "s": 84.314,
    "l": 60
  },
  "oklch": {
    "l": 0.91741,
    "c": 0.17887,
    "h": 108.4
  },
  "luminance": 0.78747
}

Semantic roles & 50–950 ramp

primary

#EFEC43

secondary

#2C2EAA

accent

#31FB2D

background

#FFFFFB

surface

#FFFEF2

border

#D7D6CC

text

#18160B

muted

#86857E

Preview Lab

Preview with #EFEC43

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

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