What color is #646B00?

#646B00 is a dark, vivid yellow, closest to the named color Serrano Pepper. It belongs to the yellow family of colors.

What is the RGB value of #646B00?

The RGB value is 100, 107, 0: 100 red, 107 green and 0 blue on a 0 to 255 scale.

What is the complementary color of #646B00?

The complementary color is #07006B, found by rotating the hue 180° on the color wheel.

Is black or white text better on #646B00?

White text. Black text has a contrast ratio of 3.64:1 and white text 5.76:1. WCAG asks for at least 4.5:1 for normal text.

#646B00 color

#646B00 rgb(100, 107, 0)

Shades of yellow

The hex color #646B00 is a dark, vivid yellow.

In the RGB color model it is made of 39.2% red, 42% green and 0% blue (100, 107, 0).

Its hue angle is 64°, with 100% saturation and 21% lightness. For print, the CMYK equivalent is 7% cyan, 0% magenta, 100% yellow and 58% black.

The closest named color is Serrano Pepper (#556600), a difference of 3.9 ΔE, a small difference.

White text is the more readable choice on this background (contrast 5.76:1).

#646B00 color codes

HEX	`#646B00`
RGB	`rgb(100, 107, 0)`
RGB percent	`rgb(39.2%, 42%, 0%)`
HSL	`hsl(64, 100%, 21%)`
HSV / HSB	`hsv(64, 100%, 42%)`
CMYK	`cmyk(7%, 0%, 100%, 58%)`
CIE LAB	`lab(43.1, -14.73, 49.14)`
CIE LCH	`lch(43.1, 51.3, 106.68)`
CIE XYZ	`xyz(10.514, 13.225, 1.999)`
Decimal	`6580992`
Short hex	`None (no 3-digit form)`

Color harmonies

Colors that go with #646B00, based on their position on the color wheel.

Complementary

The color opposite on the color wheel (180°). Strongest contrast.

Analogous

Neighbors 30° either side. Calm, natural combinations.

Split complementary

The two colors next to the complement (150° and 210°).

Triadic

Three colors evenly spaced, 120° apart.

Tetradic (square)

Four colors 90° apart.

Shades, tints and tones

Shades (darker, mixed with black)

Tints (lighter, mixed with white)

Tones (mixed with gray)

Contrast and accessibility

Text on #646B00	Ratio	AA	AAA	AA large
Sample text	3.64:1	Fail	Fail	Pass
Sample text	5.76:1	Pass	Fail	Pass

#646B00 as text on	Ratio	AA	AAA	AA large
Sample text	5.76:1	Pass	Fail	Pass
Sample text	3.64:1	Fail	Fail	Pass

WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.

Color blindness simulation

How #646B00 looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #646b00; }
.text { color: #646b00; }
.border { border: 2px solid #646b00; }
.transparent { background-color: rgb(100 107 0 / 50%); }
.gradient { background: linear-gradient(to right, #646b00, #2e6b00); }

Background

Text color

Border

Similar colors

Closest common color name: Dark Olive Green.

Questions

What color is #646B00?: #646B00 is a dark, vivid yellow, closest to the named color Serrano Pepper. It belongs to the yellow family of colors.
What is the RGB value of #646B00?: The RGB value is 100, 107, 0: 100 red, 107 green and 0 blue on a 0 to 255 scale.
What is the complementary color of #646B00?: The complementary color is #07006B, found by rotating the hue 180° on the color wheel.
Is black or white text better on #646B00?: White text. Black text has a contrast ratio of 3.64:1 and white text 5.76:1. WCAG asks for at least 4.5:1 for normal text.