#EFF39A#EFF39A

#EFF39A is a very light, moderate yellow. Relative luminance 0.848; OKLCH L 94.1% C 0.111 H 110.6°. Best body text is #000000 at 17.96:1 contrast (WCAG AA passes).

Color values

HEX	#EFF39A
RGB	rgb(239, 243, 154)
HSL	hsl(63, 79%, 78%)
HSV	hsv(63, 37%, 95%)
CMYK	cmyk(1.6%, 0%, 36.6%, 4.7%)
CIE-LAB	lab(93.79, -14.34, 42.49)
CIE-LCH	lch(93.79, 44.85, 108.65°)
OKLab	oklab(94.14% -0.0391 0.1042)
OKLCH	oklch(94.14% 0.111 110.6)
XYZ	xyz(73.4806, 84.7862, 43.0601)
Luminance	0.8478 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF39A #9E9AF3

analogous

#F3CB9A #EFF39A #C2F39A

triadic

#EFF39A #9AEFF3 #F39AEF

tetradic

#EFF39A #9AF3CB #9E9AF3 #F39AC2

square

#EFF39A #9AF3CB #9E9AF3 #F39AC2

split-complementary

#EFF39A #9AC2F3 #CB9AF3

monochromatic

#DEE62D #E6ED63 #EFF39A #F8F9D1 #FBFCE4

Accessibility & contrast

On white

1.17

#EFF39A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.96

#EFF39A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF39A

17.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF39A	#FFFFFF	#000000	##000000
##EFF39A	1.00	1.17	17.96	17.96
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.96	21.00	1.00	1.00
##000000	17.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC93

Deuteranopia (green-blind)

#FFEF9E

Tritanopia (blue-blind)

#FAE9DD

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff39a;
/* rgb */ color: rgb(239, 243, 154);
/* oklch */ color: oklch(94.1% 0.111 110.6);

Tailwind

colors: {
  custom: {
    50: '#f5f7b9',
    500: '#eff39a',
    950: '#000000',
  },
}

SCSS

$custom: #eff39a;
$custom-light: #f5f7b9;
$custom-dark: #000000;

JSON

{
  "hex": "#eff39a",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 154
  },
  "hsl": {
    "h": 62.697,
    "s": 78.761,
    "l": 77.843
  },
  "oklch": {
    "l": 0.94144,
    "c": 0.11123,
    "h": 110.6
  },
  "luminance": 0.84785
}

Semantic roles & 50–950 ramp

primary

#EFF39A

secondary

#6560D1

accent

#0ADB14

background

#FFFFFD

surface

#FFFEF8

border

#D7D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFF39A

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

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