#EFF45A#EFF45A

#EFF45A is a very light, vivid yellow. Relative luminance 0.838; OKLCH L 93.6% C 0.172 H 111.1°. Best body text is #000000 at 17.76:1 contrast (WCAG AA passes).

Color values

HEX	#EFF45A
RGB	rgb(239, 244, 90)
HSL	hsl(62, 88%, 65%)
HSV	hsv(62, 63%, 96%)
CMYK	cmyk(2%, 0%, 63.1%, 4.3%)
CIE-LAB	lab(93.36, -20.29, 70.90)
CIE-LCH	lch(93.36, 73.74, 105.97°)
OKLab	oklab(93.58% -0.0619 0.1605)
OKLCH	oklch(93.58% 0.172 111.1)
XYZ	xyz(69.7948, 83.7920, 22.1677)
Luminance	0.8379 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF45A #5F5AF4

analogous

#F4AC5A #EFF45A #A2F45A

triadic

#EFF45A #5AEFF4 #F45AEF

tetradic

#EFF45A #5AF4AC #5F5AF4 #F45AA2

square

#EFF45A #5AF4AC #5F5AF4 #F45AA2

split-complementary

#EFF45A #5AA2F4 #AC5AF4

monochromatic

#C0C60D #E9F021 #EFF45A #F5F893 #FAFCCD

Accessibility & contrast

On white

1.18

#EFF45A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.76

#EFF45A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF45A

17.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF45A	#FFFFFF	#000000	##000000
##EFF45A	1.00	1.18	17.76	17.76
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.76	21.00	1.00	1.00
##000000	17.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA46

Deuteranopia (green-blind)

#FFEE64

Tritanopia (blue-blind)

#FFE6D4

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff45a;
/* rgb */ color: rgb(239, 244, 90);
/* oklch */ color: oklch(93.6% 0.172 111.1);

Tailwind

colors: {
  custom: {
    50: '#f7f790',
    500: '#eff45a',
    950: '#000000',
  },
}

SCSS

$custom: #eff45a;
$custom-light: #f7f790;
$custom-dark: #000000;

JSON

{
  "hex": "#eff45a",
  "rgb": {
    "r": 239,
    "g": 244,
    "b": 90
  },
  "hsl": {
    "h": 61.948,
    "s": 87.5,
    "l": 65.49
  },
  "oklch": {
    "l": 0.93577,
    "c": 0.17201,
    "h": 111.1
  },
  "luminance": 0.8379
}

Semantic roles & 50–950 ramp

primary

#EFF45A

secondary

#342FC3

accent

#01E409

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF45A

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

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