#EFD557#EFD557

#EFD557 is a very light, vivid yellow. Relative luminance 0.666; OKLCH L 87.2% C 0.146 H 97.6°. Best body text is #000000 at 14.33:1 contrast (WCAG AA passes).

Color values

HEX	#EFD557
RGB	rgb(239, 213, 87)
HSL	hsl(50, 83%, 64%)
HSV	hsv(50, 64%, 94%)
CMYK	cmyk(0%, 10.9%, 63.6%, 6.3%)
CIE-LAB	lab(85.32, -5.15, 63.60)
CIE-LCH	lch(85.32, 63.81, 94.63°)
OKLab	oklab(87.17% -0.0192 0.1446)
OKLCH	oklch(87.17% 0.146 97.6)
XYZ	xyz(61.1138, 66.6302, 18.6568)
Luminance	0.6663 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFD557 #5771EF

analogous

#EF8957 #EFD557 #BDEF57

triadic

#EFD557 #57EFD5 #D557EF

tetradic

#EFD557 #57EF89 #5771EF #EF57BD

square

#EFD557 #57EF89 #5771EF #EF57BD

split-complementary

#EFD557 #57BDEF #8957EF

monochromatic

#BA9D12 #EAC71F #EFD557 #F4E38F #FAF1C7

Accessibility & contrast

On white

1.47

#EFD557 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.33

#EFD557 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFD557

14.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFD557	#FFFFFF	#000000	##000000
##EFD557	1.00	1.47	14.33	14.33
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.33	21.00	1.00	1.00
##000000	14.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D048

Deuteranopia (green-blind)

#F0D95E

Tritanopia (blue-blind)

#FFC6BA

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #efd557;
/* rgb */ color: rgb(239, 213, 87);
/* oklch */ color: oklch(87.2% 0.146 97.6);

Tailwind

colors: {
  custom: {
    50: '#f8e18c',
    500: '#efd557',
    950: '#000000',
  },
}

SCSS

$custom: #efd557;
$custom-light: #f8e18c;
$custom-dark: #000000;

JSON

{
  "hex": "#efd557",
  "rgb": {
    "r": 239,
    "g": 213,
    "b": 87
  },
  "hsl": {
    "h": 49.737,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.87169,
    "c": 0.14591,
    "h": 97.6
  },
  "luminance": 0.66627
}

Semantic roles & 50–950 ramp

primary

#EFD557

secondary

#3149B9

accent

#2CDF06

background

#FFFEFC

surface

#FFFCF4

border

#D7D5CE

text

#18150C

muted

#86847F

Preview Lab

Preview with #EFD557

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

Preview Lab → · Contrast checker → · Palette generator →