#EFEC5B#EFEC5B

#EFEC5B is a very light, vivid yellow. Relative luminance 0.791; OKLCH L 91.9% C 0.163 H 108.1°. Best body text is #000000 at 16.82:1 contrast (WCAG AA passes).

Color values

HEX	#EFEC5B
RGB	rgb(239, 236, 91)
HSL	hsl(59, 82%, 65%)
HSV	hsv(59, 62%, 94%)
CMYK	cmyk(0%, 1.3%, 61.9%, 6.3%)
CIE-LAB	lab(91.28, -16.36, 68.31)
CIE-LCH	lch(91.28, 70.24, 103.47°)
OKLab	oklab(91.92% -0.0507 0.1552)
OKLCH	oklch(91.92% 0.163 108.1)
XYZ	xyz(67.4826, 79.0990, 21.6084)
Luminance	0.7910 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEC5B #5B5EEF

analogous

#EFA25B #EFEC5B #A8EF5B

triadic

#EFEC5B #5BEFEC #EC5BEF

tetradic

#EFEC5B #5BEFA2 #5B5EEF #EF5BA8

square

#EFEC5B #5BEFA2 #5B5EEF #EF5BA8

split-complementary

#EFEC5B #5BA8EF #A25BEF

monochromatic

#BDBA12 #EAE623 #EFEC5B #F4F293 #FAF9CB

Accessibility & contrast

On white

1.25

#EFEC5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.82

#EFEC5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEC5B

16.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEC5B	#FFFFFF	#000000	##000000
##EFEC5B	1.00	1.25	16.82	16.82
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.82	21.00	1.00	1.00
##000000	16.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FEE349

Deuteranopia (green-blind)

#FFE864

Tritanopia (blue-blind)

#FFDECE

Achromatopsia (no color)

#E6E6E6

Design tokens & code

CSS

--color: #efec5b;
/* rgb */ color: rgb(239, 236, 91);
/* oklch */ color: oklch(91.9% 0.163 108.1);

Tailwind

colors: {
  custom: {
    50: '#f7f190',
    500: '#efec5b',
    950: '#000000',
  },
}

SCSS

$custom: #efec5b;
$custom-light: #f7f190;
$custom-dark: #000000;

JSON

{
  "hex": "#efec5b",
  "rgb": {
    "r": 239,
    "g": 236,
    "b": 91
  },
  "hsl": {
    "h": 58.784,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.91918,
    "c": 0.16324,
    "h": 108.1
  },
  "luminance": 0.79097
}

Semantic roles & 50–950 ramp

primary

#EFEC5B

secondary

#3335BC

accent

#0BDF07

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18160D

muted

#86857F

Preview Lab

Preview with #EFEC5B

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

Preview Lab → · Contrast checker → · Palette generator →