#EFF370#EFF370

#EFF370 is a very light, vivid yellow. Relative luminance 0.836; OKLCH L 93.6% C 0.153 H 110.6°. Best body text is #000000 at 17.72:1 contrast (WCAG AA passes).

Color values

HEX	#EFF370
RGB	rgb(239, 243, 112)
HSL	hsl(62, 85%, 70%)
HSV	hsv(62, 54%, 95%)
CMYK	cmyk(1.6%, 0%, 53.9%, 4.7%)
CIE-LAB	lab(93.29, -18.30, 61.62)
CIE-LCH	lch(93.29, 64.28, 106.54°)
OKLab	oklab(93.58% -0.054 0.1435)
OKLCH	oklch(93.58% 0.153 110.6)
XYZ	xyz(70.5735, 83.6234, 27.7494)
Luminance	0.8362 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF370 #7470F3

analogous

#F3B670 #EFF370 #AEF370

triadic

#EFF370 #70EFF3 #F370EF

tetradic

#EFF370 #70F3B6 #7470F3 #F370AE

square

#EFF370 #70F3B6 #7470F3 #F370AE

split-complementary

#EFF370 #70AEF3 #B670F3

monochromatic

#D1D712 #E9EE38 #EFF370 #F5F8A8 #FCFCE1

Accessibility & contrast

On white

1.18

#EFF370 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.72

#EFF370 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF370

17.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF370	#FFFFFF	#000000	##000000
##EFF370	1.00	1.18	17.72	17.72
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.72	21.00	1.00	1.00
##000000	17.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA63

Deuteranopia (green-blind)

#FFEE77

Tritanopia (blue-blind)

#FDE6D6

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff370;
/* rgb */ color: rgb(239, 243, 112);
/* oklch */ color: oklch(93.6% 0.153 110.6);

Tailwind

colors: {
  custom: {
    50: '#f7f69d',
    500: '#eff370',
    950: '#000000',
  },
}

SCSS

$custom: #eff370;
$custom-light: #f7f69d;
$custom-dark: #000000;

JSON

{
  "hex": "#eff370",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 112
  },
  "hsl": {
    "h": 61.832,
    "s": 84.516,
    "l": 69.608
  },
  "oklch": {
    "l": 0.93579,
    "c": 0.15336,
    "h": 110.6
  },
  "luminance": 0.83622
}

Semantic roles & 50–950 ramp

primary

#EFF370

secondary

#3F3BCD

accent

#05E10B

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF370

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

Preview Lab → · Contrast checker → · Palette generator →