#EFF055#EFF055

#EFF055 is a very light, vivid yellow. Relative luminance 0.813; OKLCH L 92.7% C 0.171 H 109.7°. Best body text is #000000 at 17.27:1 contrast (WCAG AA passes).

Color values

HEX	#EFF055
RGB	rgb(239, 240, 85)
HSL	hsl(60, 84%, 64%)
HSV	hsv(60, 65%, 94%)
CMYK	cmyk(0.4%, 0%, 64.6%, 5.9%)
CIE-LAB	lab(92.28, -18.65, 71.71)
CIE-LCH	lch(92.28, 74.09, 104.58°)
OKLab	oklab(92.7% -0.0578 0.1615)
OKLCH	oklch(92.7% 0.171 109.7)
XYZ	xyz(68.3986, 81.3287, 20.6875)
Luminance	0.8133 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF055 #5655F0

analogous

#F0A355 #EFF055 #A1F055

triadic

#EFF055 #55EFF0 #F055EF

tetradic

#EFF055 #55F0A3 #5655F0 #F055A1

square

#EFF055 #55F0A3 #5655F0 #F055A1

split-complementary

#EFF055 #55A1F0 #A355F0

monochromatic

#B9BA10 #EAEB1D #EFF055 #F4F58D #FAFAC5

Accessibility & contrast

On white

1.22

#EFF055 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.27

#EFF055 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF055

17.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF055	#FFFFFF	#000000	##000000
##EFF055	1.00	1.22	17.27	17.27
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.27	21.00	1.00	1.00
##000000	17.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE63F

Deuteranopia (green-blind)

#FFEB5F

Tritanopia (blue-blind)

#FFE2D0

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #eff055;
/* rgb */ color: rgb(239, 240, 85);
/* oklch */ color: oklch(92.7% 0.171 109.7);

Tailwind

colors: {
  custom: {
    50: '#f8f48d',
    500: '#eff055',
    950: '#000000',
  },
}

SCSS

$custom: #eff055;
$custom-light: #f8f48d;
$custom-dark: #000000;

JSON

{
  "hex": "#eff055",
  "rgb": {
    "r": 239,
    "g": 240,
    "b": 85
  },
  "hsl": {
    "h": 60.387,
    "s": 83.784,
    "l": 63.725
  },
  "oklch": {
    "l": 0.92701,
    "c": 0.17149,
    "h": 109.7
  },
  "luminance": 0.81327
}

Semantic roles & 50–950 ramp

primary

#EFF055

secondary

#3130B9

accent

#05E007

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF055

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

Preview Lab → · Contrast checker → · Palette generator →