#646E15#646E15

#646E15 is a mid, moderate yellow. Relative luminance 0.139; OKLCH L 51.3% C 0.108 H 116.1°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#646E15
RGB	rgb(100, 110, 21)
HSL	hsl(67, 68%, 26%)
HSV	hsv(67, 81%, 43%)
CMYK	cmyk(9.1%, 0%, 80.9%, 56.9%)
CIE-LAB	lab(44.11, -15.68, 44.48)
CIE-LCH	lch(44.11, 47.17, 109.42°)
OKLab	oklab(51.28% -0.0477 0.0974)
OKLCH	oklch(51.28% 0.109 116.1)
XYZ	xyz(10.9671, 13.9155, 2.8175)
Luminance	0.1391 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E15 #1F156E

analogous

#6E4B15 #646E15 #376E15

triadic

#646E15 #15646E #6E1564

tetradic

#646E15 #156E4B #1F156E #6E1537

square

#646E15 #156E4B #1F156E #6E1537

split-complementary

#646E15 #15376E #4B156E

monochromatic

#171A05 #353B0B #646E15 #93A11F #C1D529

Accessibility & contrast

On white

5.55

#646E15 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#646E15 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E15

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E15	#FFFFFF	#000000	##FFFFFF
##646E15	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#766800

Deuteranopia (green-blind)

#75691D

Tritanopia (blue-blind)

#6B675D

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646e15;
/* rgb */ color: rgb(100, 110, 21);
/* oklch */ color: oklch(51.3% 0.108 116.1);

Tailwind

colors: {
  custom: {
    50: '#93975b',
    500: '#646e15',
    950: '#000000',
  },
}

SCSS

$custom: #646e15;
$custom-light: #93975b;
$custom-dark: #000000;

JSON

{
  "hex": "#646e15",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 21
  },
  "hsl": {
    "h": 66.742,
    "s": 67.939,
    "l": 25.686
  },
  "oklch": {
    "l": 0.51284,
    "c": 0.1085,
    "h": 116.1
  },
  "luminance": 0.13915
}

Semantic roles & 50–950 ramp

primary

#646E15

secondary

#463AA4

accent

#3DEB51

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D04

muted

#7E7E79

Preview Lab

Preview with #646E15

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

Preview Lab → · Contrast checker → · Palette generator →