#EFE454#EFE454

#EFE454 is a very light, vivid yellow. Relative luminance 0.745; OKLCH L 90.2% C 0.161 H 104.9°. Best body text is #000000 at 15.90:1 contrast (WCAG AA passes).

Color values

HEX	#EFE454
RGB	rgb(239, 228, 84)
HSL	hsl(56, 83%, 63%)
HSV	hsv(56, 65%, 94%)
CMYK	cmyk(0%, 4.6%, 64.9%, 6.3%)
CIE-LAB	lab(89.15, -12.84, 68.86)
CIE-LCH	lch(89.15, 70.05, 100.56°)
OKLab	oklab(90.2% -0.0415 0.1553)
OKLCH	oklch(90.2% 0.161 104.9)
XYZ	xyz(64.9427, 74.4800, 19.3410)
Luminance	0.7448 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFE454 #545FEF

analogous

#EF9654 #EFE454 #ACEF54

triadic

#EFE454 #54EFE4 #E454EF

tetradic

#EFE454 #54EF96 #545FEF #EF54AC

square

#EFE454 #54EF96 #545FEF #EF54AC

split-complementary

#EFE454 #54ACEF #9654EF

monochromatic

#B7AC11 #EADB1C #EFE454 #F4ED8C #F9F6C4

Accessibility & contrast

On white

1.32

#EFE454 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.90

#EFE454 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFE454

15.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFE454	#FFFFFF	#000000	##000000
##EFE454	1.00	1.32	15.90	15.90
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.90	21.00	1.00	1.00
##000000	15.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F7DC41

Deuteranopia (green-blind)

#FBE35D

Tritanopia (blue-blind)

#FFD5C6

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #efe454;
/* rgb */ color: rgb(239, 228, 84);
/* oklch */ color: oklch(90.2% 0.161 104.9);

Tailwind

colors: {
  custom: {
    50: '#f8ec8b',
    500: '#efe454',
    950: '#000000',
  },
}

SCSS

$custom: #efe454;
$custom-light: #f8ec8b;
$custom-dark: #000000;

JSON

{
  "hex": "#efe454",
  "rgb": {
    "r": 239,
    "g": 228,
    "b": 84
  },
  "hsl": {
    "h": 55.742,
    "s": 82.888,
    "l": 63.333
  },
  "oklch": {
    "l": 0.90204,
    "c": 0.16076,
    "h": 104.9
  },
  "luminance": 0.74478
}

Semantic roles & 50–950 ramp

primary

#EFE454

secondary

#313AB7

accent

#16DF06

background

#FFFEFC

surface

#FFFDF4

border

#D7D5CE

text

#18160C

muted

#86847F

Preview Lab

Preview with #EFE454

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

Preview Lab → · Contrast checker → · Palette generator →