#EFF371#EFF371

#EFF371 is a very light, vivid yellow. Relative luminance 0.836; OKLCH L 93.6% C 0.152 H 110.6°. Best body text is #000000 at 17.73:1 contrast (WCAG AA passes).

Color values

HEX	#EFF371
RGB	rgb(239, 243, 113)
HSL	hsl(62, 84%, 70%)
HSV	hsv(62, 53%, 95%)
CMYK	cmyk(1.6%, 0%, 53.5%, 4.7%)
CIE-LAB	lab(93.30, -18.22, 61.19)
CIE-LCH	lch(93.30, 63.85, 106.58°)
OKLab	oklab(93.59% -0.0537 0.1427)
OKLCH	oklch(93.59% 0.152 110.6)
XYZ	xyz(70.6295, 83.6458, 28.0442)
Luminance	0.8364 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF371 #7571F3

analogous

#F3B671 #EFF371 #AEF371

triadic

#EFF371 #71EFF3 #F371EF

tetradic

#EFF371 #71F3B6 #7571F3 #F371AE

square

#EFF371 #71F3B6 #7571F3 #F371AE

split-complementary

#EFF371 #71AEF3 #B671F3

monochromatic

#D1D712 #E9EE39 #EFF371 #F5F8A9 #FCFDE2

Accessibility & contrast

On white

1.18

#EFF371 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.73

#EFF371 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF371

17.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF371	#FFFFFF	#000000	##000000
##EFF371	1.00	1.18	17.73	17.73
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.73	21.00	1.00	1.00
##000000	17.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA64

Deuteranopia (green-blind)

#FFEE78

Tritanopia (blue-blind)

#FDE6D6

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff371;
/* rgb */ color: rgb(239, 243, 113);
/* oklch */ color: oklch(93.6% 0.152 110.6);

Tailwind

colors: {
  custom: {
    50: '#f7f69e',
    500: '#eff371',
    950: '#000000',
  },
}

SCSS

$custom: #eff371;
$custom-light: #f7f69e;
$custom-dark: #000000;

JSON

{
  "hex": "#eff371",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 113
  },
  "hsl": {
    "h": 61.846,
    "s": 84.416,
    "l": 69.804
  },
  "oklch": {
    "l": 0.93589,
    "c": 0.15248,
    "h": 110.6
  },
  "luminance": 0.83644
}

Semantic roles & 50–950 ramp

primary

#EFF371

secondary

#403BCD

accent

#05E10B

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF371

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

Preview Lab → · Contrast checker → · Palette generator →