#EFF380#EFF380

#EFF380 is a very light, vivid yellow. Relative luminance 0.840; OKLCH L 93.8% C 0.139 H 110.6°. Best body text is #000000 at 17.80:1 contrast (WCAG AA passes).

Color values

HEX	#EFF380
RGB	rgb(239, 243, 128)
HSL	hsl(62, 83%, 73%)
HSV	hsv(62, 47%, 95%)
CMYK	cmyk(1.6%, 0%, 47.3%, 4.7%)
CIE-LAB	lab(93.46, -16.96, 54.56)
CIE-LCH	lch(93.46, 57.13, 107.27°)
OKLab	oklab(93.77% -0.0486 0.1297)
OKLCH	oklch(93.77% 0.139 110.6)
XYZ	xyz(71.5449, 84.0119, 32.8649)
Luminance	0.8401 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF380 #8480F3

analogous

#F3BD80 #EFF380 #B5F380

triadic

#EFF380 #80EFF3 #F380EF

tetradic

#EFF380 #80F3BD #8480F3 #F380B5

square

#EFF380 #80F3BD #8480F3 #F380B5

split-complementary

#EFF380 #80B5F3 #BD80F3

monochromatic

#DCE315 #E8EE48 #EFF380 #F6F8B8 #FBFCE3

Accessibility & contrast

On white

1.18

#EFF380 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.80

#EFF380 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF380

17.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF380	#FFFFFF	#000000	##000000
##EFF380	1.00	1.18	17.80	17.80
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.80	21.00	1.00	1.00
##000000	17.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA76

Deuteranopia (green-blind)

#FFEE86

Tritanopia (blue-blind)

#FCE7D8

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff380;
/* rgb */ color: rgb(239, 243, 128);
/* oklch */ color: oklch(93.8% 0.139 110.6);

Tailwind

colors: {
  custom: {
    50: '#f6f6a7',
    500: '#eff380',
    950: '#000000',
  },
}

SCSS

$custom: #eff380;
$custom-light: #f6f6a7;
$custom-dark: #000000;

JSON

{
  "hex": "#eff380",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 128
  },
  "hsl": {
    "h": 62.087,
    "s": 82.734,
    "l": 72.745
  },
  "oklch": {
    "l": 0.93768,
    "c": 0.1385,
    "h": 110.6
  },
  "luminance": 0.8401
}

Semantic roles & 50–950 ramp

primary

#EFF380

secondary

#4D49CE

accent

#06DF0E

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#171710

muted

#858580

Preview Lab

Preview with #EFF380

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

Preview Lab → · Contrast checker → · Palette generator →