#EFF361#EFF361

#EFF361 is a very light, vivid yellow. Relative luminance 0.833; OKLCH L 93.4% C 0.166 H 110.7°. Best body text is #000000 at 17.66:1 contrast (WCAG AA passes).

Color values

HEX	#EFF361
RGB	rgb(239, 243, 97)
HSL	hsl(62, 86%, 67%)
HSV	hsv(62, 60%, 95%)
CMYK	cmyk(1.6%, 0%, 60.1%, 4.7%)
CIE-LAB	lab(93.15, -19.37, 67.87)
CIE-LCH	lch(93.15, 70.58, 105.93°)
OKLab	oklab(93.43% -0.0586 0.1551)
OKLCH	oklch(93.43% 0.166 110.7)
XYZ	xyz(69.8068, 83.3167, 23.7114)
Luminance	0.8331 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF361 #6561F3

analogous

#F3AE61 #EFF361 #A6F361

triadic

#EFF361 #61EFF3 #F361EF

tetradic

#EFF361 #61F3AE #6561F3 #F361A6

square

#EFF361 #61F3AE #6561F3 #F361A6

split-complementary

#EFF361 #61A6F3 #AE61F3

monochromatic

#C5CA0F #E9EF28 #EFF361 #F5F79A #FBFCD3

Accessibility & contrast

On white

1.19

#EFF361 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.66

#EFF361 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF361

17.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF361	#FFFFFF	#000000	##000000
##EFF361	1.00	1.19	17.66	17.66
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.66	21.00	1.00	1.00
##000000	17.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE950

Deuteranopia (green-blind)

#FFED6A

Tritanopia (blue-blind)

#FEE5D4

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff361;
/* rgb */ color: rgb(239, 243, 97);
/* oklch */ color: oklch(93.4% 0.166 110.7);

Tailwind

colors: {
  custom: {
    50: '#f7f694',
    500: '#eff361',
    950: '#000000',
  },
}

SCSS

$custom: #eff361;
$custom-light: #f7f694;
$custom-dark: #000000;

JSON

{
  "hex": "#eff361",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 97
  },
  "hsl": {
    "h": 61.644,
    "s": 85.882,
    "l": 66.667
  },
  "oklch": {
    "l": 0.93429,
    "c": 0.16576,
    "h": 110.7
  },
  "luminance": 0.83315
}

Semantic roles & 50–950 ramp

primary

#EFF361

secondary

#3631C7

accent

#03E209

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFF361

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

Preview Lab → · Contrast checker → · Palette generator →