#EFF25B#EFF25B

#EFF25B is a very light, vivid yellow. Relative luminance 0.826; OKLCH L 93.2% C 0.169 H 110.4°. Best body text is #000000 at 17.52:1 contrast (WCAG AA passes).

Color values

HEX	#EFF25B
RGB	rgb(239, 242, 91)
HSL	hsl(61, 85%, 65%)
HSV	hsv(61, 62%, 95%)
CMYK	cmyk(1.2%, 0%, 62.4%, 5.1%)
CIE-LAB	lab(92.84, -19.27, 69.96)
CIE-LCH	lch(92.84, 72.56, 105.40°)
OKLab	oklab(93.17% -0.0589 0.1587)
OKLCH	oklch(93.17% 0.169 110.4)
XYZ	xyz(69.2392, 82.6121, 22.1939)
Luminance	0.8261 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF25B #5E5BF2

analogous

#F2A95B #EFF25B #A3F25B

triadic

#EFF25B #5BEFF2 #F25BEF

tetradic

#EFF25B #5BF2A9 #5E5BF2 #F25BA3

square

#EFF25B #5BF2A9 #5E5BF2 #F25BA3

split-complementary

#EFF25B #5BA3F2 #A95BF2

monochromatic

#C0C30F #E9EE22 #EFF25B #F5F694 #FAFBCC

Accessibility & contrast

On white

1.20

#EFF25B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.52

#EFF25B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF25B

17.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF25B	#FFFFFF	#000000	##000000
##EFF25B	1.00	1.20	17.52	17.52
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.52	21.00	1.00	1.00
##000000	17.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE848

Deuteranopia (green-blind)

#FFED65

Tritanopia (blue-blind)

#FFE4D3

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #eff25b;
/* rgb */ color: rgb(239, 242, 91);
/* oklch */ color: oklch(93.2% 0.169 110.4);

Tailwind

colors: {
  custom: {
    50: '#f7f690',
    500: '#eff25b',
    950: '#000000',
  },
}

SCSS

$custom: #eff25b;
$custom-light: #f7f690;
$custom-dark: #000000;

JSON

{
  "hex": "#eff25b",
  "rgb": {
    "r": 239,
    "g": 242,
    "b": 91
  },
  "hsl": {
    "h": 61.192,
    "s": 85.311,
    "l": 65.294
  },
  "oklch": {
    "l": 0.93167,
    "c": 0.16924,
    "h": 110.4
  },
  "luminance": 0.8261
}

Semantic roles & 50–950 ramp

primary

#EFF25B

secondary

#3331C1

accent

#04E208

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF25B

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

Preview Lab → · Contrast checker → · Palette generator →