Olive Brown#645403

#645403 is a dark, moderate yellow. Relative luminance 0.091; OKLCH L 44.9% C 0.091 H 96.1°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Olive Brown — editorial page

Color values

HEX	#645403
RGB	rgb(100, 84, 3)
HSL	hsl(50, 94%, 20%)
HSV	hsv(50, 97%, 39%)
CMYK	cmyk(0%, 16%, 97%, 60.8%)
CIE-LAB	lab(36.09, -1.45, 43.08)
CIE-LCH	lch(36.09, 43.10, 91.93°)
OKLab	oklab(44.86% -0.0096 0.0905)
OKLCH	oklch(44.86% 0.091 96.1)
XYZ	xyz(8.4428, 9.0570, 1.3896)
Luminance	0.0906 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645403 #031364

analogous

#642303 #645403 #436403

triadic

#645403 #036454 #540364

tetradic

#645403 #036423 #031364 #640343

square

#645403 #036423 #031364 #640343

split-complementary

#645403 #034364 #230364

monochromatic

#1E1901 #292201 #645403 #9F8605 #DBB807

Accessibility & contrast

On white

7.47

#645403 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#645403 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #645403

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645403	#FFFFFF	#000000	##FFFFFF
##645403	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5200

Deuteranopia (green-blind)

#62570A

Tritanopia (blue-blind)

#6D4C47

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #645403;
/* rgb */ color: rgb(100, 84, 3);
/* oklch */ color: oklch(44.9% 0.091 96.1);

Tailwind

colors: {
  custom: {
    50: '#948350',
    500: '#645403',
    950: '#000000',
  },
}

SCSS

$custom: #645403;
$custom-light: #948350;
$custom-dark: #000000;

JSON

{
  "hex": "#645403",
  "rgb": {
    "r": 100,
    "g": 84,
    "b": 3
  },
  "hsl": {
    "h": 50.103,
    "s": 94.175,
    "l": 20.196
  },
  "oklch": {
    "l": 0.44863,
    "c": 0.091,
    "h": 96.1
  },
  "luminance": 0.09057
}

Semantic roles & 50–950 ramp

primary

#645403

secondary

#2136A2

accent

#4CFF29

background

#F9F8F4

surface

#F2EFE7

border

#CCCAC3

text

#0E0A02

muted

#7E7C78

Preview Lab

Preview with #645403

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

Preview Lab → · Contrast checker → · Palette generator →