#EFF536#EFF536

#EFF536 is a very light, vivid yellow. Relative luminance 0.839; OKLCH L 93.6% C 0.194 H 111.5°. Best body text is #000000 at 17.78:1 contrast (WCAG AA passes).

Color values

HEX	#EFF536
RGB	rgb(239, 245, 54)
HSL	hsl(62, 91%, 59%)
HSV	hsv(62, 78%, 96%)
CMYK	cmyk(2.4%, 0%, 78%, 3.9%)
CIE-LAB	lab(93.42, -22.43, 82.98)
CIE-LCH	lch(93.42, 85.96, 105.13°)
OKLab	oklab(93.56% -0.071 0.1802)
OKLCH	oklch(93.56% 0.194 111.5)
XYZ	xyz(68.9173, 83.9237, 16.0578)
Luminance	0.8392 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF536 #3C36F5

analogous

#F59B36 #EFF536 #8FF536

triadic

#EFF536 #36EFF5 #F536EF

tetradic

#EFF536 #36F59B #3C36F5 #F5368F

square

#EFF536 #36F59B #3C36F5 #F5368F

split-complementary

#EFF536 #368FF5 #9B36F5

monochromatic

#A3A808 #DCE30B #EFF536 #F4F870 #F8FBAB

Accessibility & contrast

On white

1.18

#EFF536 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.78

#EFF536 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF536

17.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF536	#FFFFFF	#000000	##000000
##EFF536	1.00	1.18	17.78	17.78
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.78	21.00	1.00	1.00
##000000	17.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA00

Deuteranopia (green-blind)

#FFEE48

Tritanopia (blue-blind)

#FFE6D2

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff536;
/* rgb */ color: rgb(239, 245, 54);
/* oklch */ color: oklch(93.6% 0.194 111.5);

Tailwind

colors: {
  custom: {
    50: '#f9f87e',
    500: '#eff536',
    950: '#000000',
  },
}

SCSS

$custom: #eff536;
$custom-light: #f9f87e;
$custom-dark: #000000;

JSON

{
  "hex": "#eff536",
  "rgb": {
    "r": 239,
    "g": 245,
    "b": 54
  },
  "hsl": {
    "h": 61.885,
    "s": 90.521,
    "l": 58.627
  },
  "oklch": {
    "l": 0.93557,
    "c": 0.19369,
    "h": 111.5
  },
  "luminance": 0.83922
}

Semantic roles & 50–950 ramp

primary

#EFF536

secondary

#2A26A9

accent

#29FF30

background

#FFFFFB

surface

#FFFEF2

border

#D7D6CC

text

#18170B

muted

#86857E

Preview Lab

Preview with #EFF536

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

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