#EFF180#EFF180

#EFF180 is a very light, vivid yellow. Relative luminance 0.828; OKLCH L 93.4% C 0.136 H 109.7°. Best body text is #000000 at 17.56:1 contrast (WCAG AA passes).

Color values

HEX	#EFF180
RGB	rgb(239, 241, 128)
HSL	hsl(61, 80%, 72%)
HSV	hsv(61, 47%, 95%)
CMYK	cmyk(0.8%, 0%, 46.9%, 5.5%)
CIE-LAB	lab(92.94, -15.99, 53.93)
CIE-LCH	lch(92.94, 56.25, 106.51°)
OKLab	oklab(93.35% -0.0459 0.1283)
OKLCH	oklch(93.35% 0.136 109.7)
XYZ	xyz(70.9496, 82.8214, 32.6665)
Luminance	0.8282 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF180 #8280F1

analogous

#F1BB80 #EFF180 #B7F180

triadic

#EFF180 #80EFF1 #F180EF

tetradic

#EFF180 #80F1BB #8280F1 #F180B7

square

#EFF180 #80F1BB #8280F1 #F180B7

split-complementary

#EFF180 #80B7F1 #BB80F1

monochromatic

#DBDE18 #E8EB49 #EFF180 #F6F7B7 #FCFCE3

Accessibility & contrast

On white

1.20

#EFF180 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.56

#EFF180 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF180

17.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF180	#FFFFFF	#000000	##000000
##EFF180	1.00	1.20	17.56	17.56
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.56	21.00	1.00	1.00
##000000	17.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE976

Deuteranopia (green-blind)

#FFED86

Tritanopia (blue-blind)

#FCE5D7

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff180;
/* rgb */ color: rgb(239, 241, 128);
/* oklch */ color: oklch(93.4% 0.136 109.7);

Tailwind

colors: {
  custom: {
    50: '#f6f5a7',
    500: '#eff180',
    950: '#000000',
  },
}

SCSS

$custom: #eff180;
$custom-light: #f6f5a7;
$custom-dark: #000000;

JSON

{
  "hex": "#eff180",
  "rgb": {
    "r": 239,
    "g": 241,
    "b": 128
  },
  "hsl": {
    "h": 61.062,
    "s": 80.142,
    "l": 72.353
  },
  "oklch": {
    "l": 0.93354,
    "c": 0.13625,
    "h": 109.7
  },
  "luminance": 0.8282
}

Semantic roles & 50–950 ramp

primary

#EFF180

secondary

#4C49CC

accent

#09DC0D

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#171710

muted

#858580

Preview Lab

Preview with #EFF180

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

Preview Lab → · Contrast checker → · Palette generator →