#EFF35A#EFF35A

#EFF35A is a very light, vivid yellow. Relative luminance 0.832; OKLCH L 93.4% C 0.171 H 110.7°. Best body text is #000000 at 17.64:1 contrast (WCAG AA passes).

Color values

HEX	#EFF35A
RGB	rgb(239, 243, 90)
HSL	hsl(62, 86%, 65%)
HSV	hsv(62, 63%, 95%)
CMYK	cmyk(1.6%, 0%, 63%, 4.7%)
CIE-LAB	lab(93.10, -19.81, 70.62)
CIE-LCH	lch(93.10, 73.35, 105.67°)
OKLab	oklab(93.37% -0.0605 0.1599)
OKLCH	oklch(93.37% 0.171 110.7)
XYZ	xyz(69.4947, 83.1918, 22.0677)
Luminance	0.8319 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF35A #5E5AF3

analogous

#F3AB5A #EFF35A #A2F35A

triadic

#EFF35A #5AEFF3 #F35AEF

tetradic

#EFF35A #5AF3AB #5E5AF3 #F35AA2

square

#EFF35A #5AF3AB #5E5AF3 #F35AA2

split-complementary

#EFF35A #5AA2F3 #AB5AF3

monochromatic

#C0C40E #E9EF21 #EFF35A #F5F793 #FAFBCC

Accessibility & contrast

On white

1.19

#EFF35A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.64

#EFF35A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF35A

17.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF35A	#FFFFFF	#000000	##000000
##EFF35A	1.00	1.19	17.64	17.64
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.64	21.00	1.00	1.00
##000000	17.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE946

Deuteranopia (green-blind)

#FFED64

Tritanopia (blue-blind)

#FFE5D3

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff35a;
/* rgb */ color: rgb(239, 243, 90);
/* oklch */ color: oklch(93.4% 0.171 110.7);

Tailwind

colors: {
  custom: {
    50: '#f7f690',
    500: '#eff35a',
    950: '#000000',
  },
}

SCSS

$custom: #eff35a;
$custom-light: #f7f690;
$custom-dark: #000000;

JSON

{
  "hex": "#eff35a",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 90
  },
  "hsl": {
    "h": 61.569,
    "s": 86.441,
    "l": 65.294
  },
  "oklch": {
    "l": 0.93368,
    "c": 0.17099,
    "h": 110.7
  },
  "luminance": 0.8319
}

Semantic roles & 50–950 ramp

primary

#EFF35A

secondary

#3330C2

accent

#03E308

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF35A

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

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