#EFEF7B#EFEF7B

#EFEF7B is a very light, vivid yellow. Relative luminance 0.815; OKLCH L 92.9% C 0.139 H 108.8°. Best body text is #000000 at 17.30:1 contrast (WCAG AA passes).

Color values

HEX	#EFEF7B
RGB	rgb(239, 239, 123)
HSL	hsl(60, 78%, 71%)
HSV	hsv(60, 49%, 94%)
CMYK	cmyk(0%, 0%, 48.5%, 6.3%)
CIE-LAB	lab(92.36, -15.45, 55.57)
CIE-LCH	lch(92.36, 57.68, 105.54°)
OKLab	oklab(92.88% -0.0448 0.1315)
OKLCH	oklch(92.88% 0.139 108.8)
XYZ	xyz(70.0398, 81.5155, 30.7796)
Luminance	0.8151 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEF7B #7B7BEF

analogous

#EFB57B #EFEF7B #B5EF7B

triadic

#EFEF7B #7BEFEF #EF7BEF

tetradic

#EFEF7B #7BEFB5 #7B7BEF #EF7BB5

square

#EFEF7B #7BEFB5 #7B7BEF #EF7BB5

split-complementary

#EFEF7B #7BB5EF #B57BEF

monochromatic

#D6D61A #E8E844 #EFEF7B #F6F6B2 #FCFCE4

Accessibility & contrast

On white

1.21

#EFEF7B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.30

#EFEF7B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEF7B

17.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEF7B	#FFFFFF	#000000	##000000
##EFEF7B	1.00	1.21	17.30	17.30
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.30	21.00	1.00	1.00
##000000	17.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE770

Deuteranopia (green-blind)

#FFEB81

Tritanopia (blue-blind)

#FDE3D4

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #efef7b;
/* rgb */ color: rgb(239, 239, 123);
/* oklch */ color: oklch(92.9% 0.139 108.8);

Tailwind

colors: {
  custom: {
    50: '#f6f4a4',
    500: '#efef7b',
    950: '#000000',
  },
}

SCSS

$custom: #efef7b;
$custom-light: #f6f4a4;
$custom-dark: #000000;

JSON

{
  "hex": "#efef7b",
  "rgb": {
    "r": 239,
    "g": 239,
    "b": 123
  },
  "hsl": {
    "h": 60,
    "s": 78.378,
    "l": 70.98
  },
  "oklch": {
    "l": 0.92877,
    "c": 0.13891,
    "h": 108.8
  },
  "luminance": 0.81514
}

Semantic roles & 50–950 ramp

primary

#EFEF7B

secondary

#4545C9

accent

#0BDB0B

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFEF7B

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

Preview Lab → · Contrast checker → · Palette generator →