#EFF059#EFF059

#EFF059 is a very light, vivid yellow. Relative luminance 0.814; OKLCH L 92.7% C 0.169 H 109.6°. Best body text is #000000 at 17.28:1 contrast (WCAG AA passes).

Color values

HEX	#EFF059
RGB	rgb(239, 240, 89)
HSL	hsl(60, 83%, 65%)
HSV	hsv(60, 63%, 94%)
CMYK	cmyk(0.4%, 0%, 62.9%, 5.9%)
CIE-LAB	lab(92.31, -18.42, 70.19)
CIE-LCH	lch(92.31, 72.56, 104.70°)
OKLab	oklab(92.73% -0.0567 0.1589)
OKLCH	oklch(92.73% 0.169 109.6)
XYZ	xyz(68.5620, 81.3940, 21.5482)
Luminance	0.8139 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF059 #5A59F0

analogous

#F0A559 #EFF059 #A4F059

triadic

#EFF059 #59EFF0 #F059EF

tetradic

#EFF059 #59F0A5 #5A59F0 #F059A4

square

#EFF059 #59F0A5 #5A59F0 #F059A4

split-complementary

#EFF059 #59A4F0 #A559F0

monochromatic

#BCBD11 #EAEB21 #EFF059 #F4F591 #FAFAC9

Accessibility & contrast

On white

1.22

#EFF059 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.28

#EFF059 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF059

17.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF059	#FFFFFF	#000000	##000000
##EFF059	1.00	1.22	17.28	17.28
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.28	21.00	1.00	1.00
##000000	17.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE645

Deuteranopia (green-blind)

#FFEB63

Tritanopia (blue-blind)

#FFE2D1

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #eff059;
/* rgb */ color: rgb(239, 240, 89);
/* oklch */ color: oklch(92.7% 0.169 109.6);

Tailwind

colors: {
  custom: {
    50: '#f7f48f',
    500: '#eff059',
    950: '#000000',
  },
}

SCSS

$custom: #eff059;
$custom-light: #f7f48f;
$custom-dark: #000000;

JSON

{
  "hex": "#eff059",
  "rgb": {
    "r": 239,
    "g": 240,
    "b": 89
  },
  "hsl": {
    "h": 60.397,
    "s": 83.425,
    "l": 64.51
  },
  "oklch": {
    "l": 0.92733,
    "c": 0.16867,
    "h": 109.6
  },
  "luminance": 0.81392
}

Semantic roles & 50–950 ramp

primary

#EFF059

secondary

#3231BC

accent

#06E007

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF059

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

Preview Lab → · Contrast checker → · Palette generator →