#E3EF57#E3EF57

#E3EF57 is a very light, vivid yellow. Relative luminance 0.788; OKLCH L 91.6% C 0.172 H 113.6°. Best body text is #000000 at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#E3EF57
RGB	rgb(227, 239, 87)
HSL	hsl(65, 83%, 64%)
HSV	hsv(65, 64%, 94%)
CMYK	cmyk(5%, 0%, 63.6%, 6.3%)
CIE-LAB	lab(91.12, -22.88, 69.45)
CIE-LCH	lch(91.12, 73.12, 108.23°)
OKLab	oklab(91.56% -0.0688 0.1573)
OKLCH	oklch(91.56% 0.172 113.6)
XYZ	xyz(64.2670, 78.7533, 20.8304)
Luminance	0.7875 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#E3EF57 #6357EF

analogous

#EFAF57 #E3EF57 #97EF57

triadic

#E3EF57 #57E3EF #EF57E3

tetradic

#E3EF57 #57EFAF #6357EF #EF5797

square

#E3EF57 #57EFAF #6357EF #EF5797

split-complementary

#E3EF57 #5797EF #AF57EF

monochromatic

#ADBA12 #DAEA1F #E3EF57 #ECF48F #F6FAC7

Accessibility & contrast

On white

1.25

#E3EF57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.75

#E3EF57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #E3EF57

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##E3EF57	#FFFFFF	#000000	##000000
##E3EF57	1.00	1.25	16.75	16.75
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.75	21.00	1.00	1.00
##000000	16.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE443

Deuteranopia (green-blind)

#FFE761

Tritanopia (blue-blind)

#F1E2D0

Achromatopsia (no color)

#E6E6E6

Design tokens & code

CSS

--color: #e3ef57;
/* rgb */ color: rgb(227, 239, 87);
/* oklch */ color: oklch(91.6% 0.172 113.6);

Tailwind

colors: {
  custom: {
    50: '#eff48d',
    500: '#e3ef57',
    950: '#000000',
  },
}

SCSS

$custom: #e3ef57;
$custom-light: #eff48d;
$custom-dark: #000000;

JSON

{
  "hex": "#e3ef57",
  "rgb": {
    "r": 227,
    "g": 239,
    "b": 87
  },
  "hsl": {
    "h": 64.737,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.91559,
    "c": 0.17169,
    "h": 113.6
  },
  "luminance": 0.78752
}

Semantic roles & 50–950 ramp

primary

#E3EF57

secondary

#3C31B9

accent

#06DF18

background

#FFFFFC

surface

#FEFEF4

border

#D6D6CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #E3EF57

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

Preview Lab → · Contrast checker → · Palette generator →