#EFF99E#EFF99E

#EFF99E is a very light, moderate yellow. Relative luminance 0.886; OKLCH L 95.4% C 0.114 H 113.7°. Best body text is #000000 at 18.71:1 contrast (WCAG AA passes).

Color values

HEX	#EFF99E
RGB	rgb(239, 249, 158)
HSL	hsl(67, 88%, 80%)
HSV	hsv(67, 37%, 98%)
CMYK	cmyk(4%, 0%, 36.5%, 2.4%)
CIE-LAB	lab(95.40, -16.82, 42.60)
CIE-LCH	lch(95.40, 45.80, 111.55°)
OKLab	oklab(95.44% -0.0459 0.1046)
OKLCH	oklch(95.44% 0.114 113.7)
XYZ	xyz(75.6443, 88.5716, 45.4522)
Luminance	0.8857 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF99E #A89EF9

analogous

#F9D59E #EFF99E #C2F99E

triadic

#EFF99E #9EEFF9 #F99EEF

tetradic

#EFF99E #9EF9D5 #A89EF9 #F99EC2

square

#EFF99E #9EF9D5 #A89EF9 #F99EC2

split-complementary

#EFF99E #9EC2F9 #D59EF9

monochromatic

#DCF22B #E5F564 #EFF99E #F9FDD8 #FAFDE2

Accessibility & contrast

On white

1.12

#EFF99E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.71

#EFF99E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF99E

18.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF99E	#FFFFFF	#000000	##000000
##EFF99E	1.00	1.12	18.71	18.71
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.71	21.00	1.00	1.00
##000000	18.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF197

Deuteranopia (green-blind)

#FFF3A2

Tritanopia (blue-blind)

#F9EFE2

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #eff99e;
/* rgb */ color: rgb(239, 249, 158);
/* oklch */ color: oklch(95.4% 0.114 113.7);

Tailwind

colors: {
  custom: {
    50: '#f5fbbb',
    500: '#eff99e',
    950: '#000000',
  },
}

SCSS

$custom: #eff99e;
$custom-light: #f5fbbb;
$custom-dark: #000000;

JSON

{
  "hex": "#eff99e",
  "rgb": {
    "r": 239,
    "g": 249,
    "b": 158
  },
  "hsl": {
    "h": 66.593,
    "s": 88.35,
    "l": 79.804
  },
  "oklch": {
    "l": 0.95444,
    "c": 0.11418,
    "h": 113.7
  },
  "luminance": 0.88571
}

Semantic roles & 50–950 ramp

primary

#EFF99E

secondary

#6F61DA

accent

#01E51A

background

#FFFFFD

surface

#FFFFF8

border

#D7D7D1

text

#171712

muted

#858582

Preview Lab

Preview with #EFF99E

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

Preview Lab → · Contrast checker → · Palette generator →