#EFE37B#EFE37B

#EFE37B is a very light, vivid yellow. Relative luminance 0.747; OKLCH L 90.4% C 0.126 H 102.7°. Best body text is #000000 at 15.94:1 contrast (WCAG AA passes).

Color values

HEX	#EFE37B
RGB	rgb(239, 227, 123)
HSL	hsl(54, 78%, 71%)
HSV	hsv(54, 49%, 94%)
CMYK	cmyk(0%, 5%, 48.5%, 6.3%)
CIE-LAB	lab(89.26, -9.52, 51.86)
CIE-LCH	lch(89.26, 52.72, 100.40°)
OKLab	oklab(90.41% -0.0278 0.1233)
OKLCH	oklch(90.41% 0.126 102.7)
XYZ	xyz(66.6426, 74.7211, 29.6472)
Luminance	0.7472 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFE37B #7B87EF

analogous

#EFA97B #EFE37B #C1EF7B

triadic

#EFE37B #7BEFE3 #E37BEF

tetradic

#EFE37B #7BEFA9 #7B87EF #EF7BC1

square

#EFE37B #7BEFA9 #7B87EF #EF7BC1

split-complementary

#EFE37B #7BC1EF #A97BEF

monochromatic

#D6C21A #E8D744 #EFE37B #F6EFB2 #FCF9E4

Accessibility & contrast

On white

1.32

#EFE37B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.94

#EFE37B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFE37B

15.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFE37B	#FFFFFF	#000000	##000000
##EFE37B	1.00	1.32	15.94	15.94
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.94	21.00	1.00	1.00
##000000	15.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F3DD72

Deuteranopia (green-blind)

#F7E380

Tritanopia (blue-blind)

#FED7CB

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #efe37b;
/* rgb */ color: rgb(239, 227, 123);
/* oklch */ color: oklch(90.4% 0.126 102.7);

Tailwind

colors: {
  custom: {
    50: '#f6eba3',
    500: '#efe37b',
    950: '#000000',
  },
}

SCSS

$custom: #efe37b;
$custom-light: #f6eba3;
$custom-dark: #000000;

JSON

{
  "hex": "#efe37b",
  "rgb": {
    "r": 239,
    "g": 227,
    "b": 123
  },
  "hsl": {
    "h": 53.793,
    "s": 78.378,
    "l": 70.98
  },
  "oklch": {
    "l": 0.90414,
    "c": 0.12644,
    "h": 102.7
  },
  "luminance": 0.74719
}

Semantic roles & 50–950 ramp

primary

#EFE37B

secondary

#4553C9

accent

#20DB0B

background

#FFFEFC

surface

#FFFDF6

border

#D7D5D0

text

#17160F

muted

#858480

Preview Lab

Preview with #EFE37B

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

Preview Lab → · Contrast checker → · Palette generator →