#EFF289#EFF289

#EFF289 is a very light, vivid yellow. Relative luminance 0.837; OKLCH L 93.7% C 0.128 H 110.1°. Best body text is #000000 at 17.73:1 contrast (WCAG AA passes).

Color values

HEX	#EFF289
RGB	rgb(239, 242, 137)
HSL	hsl(62, 80%, 74%)
HSV	hsv(62, 43%, 95%)
CMYK	cmyk(1.2%, 0%, 43.4%, 5.1%)
CIE-LAB	lab(93.30, -15.63, 50.13)
CIE-LCH	lch(93.30, 52.51, 107.32°)
OKLab	oklab(93.68% -0.044 0.1205)
OKLCH	oklch(93.68% 0.128 110.1)
XYZ	xyz(71.8653, 83.6625, 36.0248)
Luminance	0.8366 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF289 #8C89F2

analogous

#F2C189 #EFF289 #BBF289

triadic

#EFF289 #89EFF2 #F289EF

tetradic

#EFF289 #89F2C1 #8C89F2 #F289BB

square

#EFF289 #89F2C1 #8C89F2 #F289BB

split-complementary

#EFF289 #89BBF2 #C189F2

monochromatic

#E0E61B #E8EC52 #EFF289 #F6F8C0 #FBFCE3

Accessibility & contrast

On white

1.18

#EFF289 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.73

#EFF289 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF289

17.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF289	#FFFFFF	#000000	##000000
##EFF289	1.00	1.18	17.73	17.73
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.73	21.00	1.00	1.00
##000000	17.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA80

Deuteranopia (green-blind)

#FFED8E

Tritanopia (blue-blind)

#FCE7D9

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff289;
/* rgb */ color: rgb(239, 242, 137);
/* oklch */ color: oklch(93.7% 0.128 110.1);

Tailwind

colors: {
  custom: {
    50: '#f6f6ad',
    500: '#eff289',
    950: '#000000',
  },
}

SCSS

$custom: #eff289;
$custom-light: #f6f6ad;
$custom-dark: #000000;

JSON

{
  "hex": "#eff289",
  "rgb": {
    "r": 239,
    "g": 242,
    "b": 137
  },
  "hsl": {
    "h": 61.714,
    "s": 80.153,
    "l": 74.314
  },
  "oklch": {
    "l": 0.93682,
    "c": 0.12831,
    "h": 110.1
  },
  "luminance": 0.83661
}

Semantic roles & 50–950 ramp

primary

#EFF289

secondary

#5551CE

accent

#09DC0F

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF289

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

Preview Lab → · Contrast checker → · Palette generator →