#EFF355#EFF355

#EFF355 is a very light, vivid yellow. Relative luminance 0.831; OKLCH L 93.3% C 0.174 H 110.8°. Best body text is #000000 at 17.62:1 contrast (WCAG AA passes).

Color values

HEX	#EFF355
RGB	rgb(239, 243, 85)
HSL	hsl(62, 87%, 64%)
HSV	hsv(62, 65%, 95%)
CMYK	cmyk(1.6%, 0%, 65%, 4.7%)
CIE-LAB	lab(93.06, -20.10, 72.51)
CIE-LCH	lch(93.06, 75.25, 105.49°)
OKLab	oklab(93.33% -0.0618 0.1632)
OKLCH	oklch(93.33% 0.174 110.8)
XYZ	xyz(69.2890, 83.1096, 20.9844)
Luminance	0.8311 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF355 #5955F3

analogous

#F3A855 #EFF355 #A0F355

triadic

#EFF355 #55EFF3 #F355EF

tetradic

#EFF355 #55F3A8 #5955F3 #F355A0

square

#EFF355 #55F3A8 #5955F3 #F355A0

split-complementary

#EFF355 #55A0F3 #A855F3

monochromatic

#BCC00E #EAEF1C #EFF355 #F4F78E #FAFBC7

Accessibility & contrast

On white

1.19

#EFF355 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.62

#EFF355 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF355

17.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF355	#FFFFFF	#000000	##000000
##EFF355	1.00	1.19	17.62	17.62
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.62	21.00	1.00	1.00
##000000	17.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE93F

Deuteranopia (green-blind)

#FFED60

Tritanopia (blue-blind)

#FFE5D3

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff355;
/* rgb */ color: rgb(239, 243, 85);
/* oklch */ color: oklch(93.3% 0.174 110.8);

Tailwind

colors: {
  custom: {
    50: '#f8f68d',
    500: '#eff355',
    950: '#000000',
  },
}

SCSS

$custom: #eff355;
$custom-light: #f8f68d;
$custom-dark: #000000;

JSON

{
  "hex": "#eff355",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 85
  },
  "hsl": {
    "h": 61.519,
    "s": 86.813,
    "l": 64.314
  },
  "oklch": {
    "l": 0.93327,
    "c": 0.17449,
    "h": 110.8
  },
  "luminance": 0.83108
}

Semantic roles & 50–950 ramp

primary

#EFF355

secondary

#322EBE

accent

#02E308

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF355

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

Preview Lab → · Contrast checker → · Palette generator →