#645E2F#645E2F

#645E2F is a mid, moderate yellow. Relative luminance 0.109; OKLCH L 47.6% C 0.067 H 102.1°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#645E2F
RGB	rgb(100, 94, 47)
HSL	hsl(53, 36%, 29%)
HSV	hsv(53, 53%, 39%)
CMYK	cmyk(0%, 6%, 53%, 60.8%)
CIE-LAB	lab(39.45, -4.76, 27.58)
CIE-LCH	lch(39.45, 27.99, 99.79°)
OKLab	oklab(47.63% -0.014 0.0655)
OKLCH	oklch(47.63% 0.067 102.1)
XYZ	xyz(9.7716, 10.9203, 4.2819)
Luminance	0.1092 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645E2F #2F3564

analogous

#64442F #645E2F #50642F

triadic

#645E2F #2F645E #5E2F64

tetradic

#645E2F #2F6444 #2F3564 #642F50

square

#645E2F #2F6444 #2F3564 #642F50

split-complementary

#645E2F #2F5064 #442F64

monochromatic

#15140A #3A371B #645E2F #8E8543 #B2A85B

Accessibility & contrast

On white

6.60

#645E2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#645E2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645E2F

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645E2F	#FFFFFF	#000000	##FFFFFF
##645E2F	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655B2B

Deuteranopia (green-blind)

#675E31

Tritanopia (blue-blind)

#6B5853

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645e2f;
/* rgb */ color: rgb(100, 94, 47);
/* oklch */ color: oklch(47.6% 0.067 102.1);

Tailwind

colors: {
  custom: {
    50: '#918b69',
    500: '#645e2f',
    950: '#000000',
  },
}

SCSS

$custom: #645e2f;
$custom-light: #918b69;
$custom-dark: #000000;

JSON

{
  "hex": "#645e2f",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 47
  },
  "hsl": {
    "h": 53.208,
    "s": 36.054,
    "l": 28.824
  },
  "oklch": {
    "l": 0.47634,
    "c": 0.06699,
    "h": 102.1
  },
  "luminance": 0.1092
}

Semantic roles & 50–950 ramp

primary

#645E2F

secondary

#596096

accent

#68CC5C

background

#F9F8F6

surface

#F1F0EB

border

#CBCBC6

text

#0D0C06

muted

#7E7D7A

Preview Lab

Preview with #645E2F

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

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