#645E27#645E27

#645E27 is a mid, moderate yellow. Relative luminance 0.109; OKLCH L 47.5% C 0.076 H 103.1°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#645E27
RGB	rgb(100, 94, 39)
HSL	hsl(54, 44%, 27%)
HSV	hsv(54, 61%, 39%)
CMYK	cmyk(0%, 6%, 61%, 60.8%)
CIE-LAB	lab(39.35, -5.51, 31.78)
CIE-LCH	lch(39.35, 32.26, 99.83°)
OKLab	oklab(47.52% -0.0172 0.0737)
OKLCH	oklch(47.52% 0.076 103.1)
XYZ	xyz(9.6248, 10.8616, 3.5086)
Luminance	0.1086 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645E27 #272D64

analogous

#643F27 #645E27 #4C6427

triadic

#645E27 #27645E #5E2764

tetradic

#645E27 #27643F #272D64 #64274C

square

#645E27 #27643F #272D64 #64274C

split-complementary

#645E27 #274C64 #3F2764

monochromatic

#161509 #383516 #645E27 #908738 #B9AF4C

Accessibility & contrast

On white

6.62

#645E27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#645E27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645E27

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645E27	#FFFFFF	#000000	##FFFFFF
##645E27	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665B21

Deuteranopia (green-blind)

#685E2A

Tritanopia (blue-blind)

#6B5852

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645e27;
/* rgb */ color: rgb(100, 94, 39);
/* oklch */ color: oklch(47.5% 0.076 103.1);

Tailwind

colors: {
  custom: {
    50: '#928b63',
    500: '#645e27',
    950: '#000000',
  },
}

SCSS

$custom: #645e27;
$custom-light: #928b63;
$custom-dark: #000000;

JSON

{
  "hex": "#645e27",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 39
  },
  "hsl": {
    "h": 54.098,
    "s": 43.885,
    "l": 27.255
  },
  "oklch": {
    "l": 0.47523,
    "c": 0.07565,
    "h": 103.1
  },
  "luminance": 0.10861
}

Semantic roles & 50–950 ramp

primary

#645E27

secondary

#505797

accent

#61D454

background

#F9F8F6

surface

#F1F0EB

border

#CBCBC6

text

#0D0C05

muted

#7E7D7A

Preview Lab

Preview with #645E27

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

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