Colour

#FF6B42

#FF6B42
Red
Dark
Nearest: Tomato

#FF6B42 is a red with RGB values 255, 107, 66 and HSL 13°, 100%, 63%. It is a dark colour, so black text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Tomato.

Colour values

#FF6B42#FF6B42

HEX#FF6B42

RGBrgb(255, 107, 66)

RGB (0–1)1, 0.4196, 0.2588

RGB percentages100%, 42%, 25.9%

HSLhsl(13, 100%, 62.9%)

HSV / HSBhsv(13, 74.1%, 100%)

CMYK0%, 58%, 74.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,739,138

CSS custom property--colour: #FF6B42;

Brightness & contrast

Relative luminance0.32169WCAG 2.x, 0 is black and 1 is white

Perceived brightness163.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.43:1

Contrast with white2.82:1WCAG normal text: Fail

Contrast with black7.43:1WCAG normal text: AAA

Greyscale equivalent#888888

Inverted#0094BD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#94853Dno red cones; affects about 1% of men; ΔE 59.3 from the original

Deuteranopia#B8A63Dno green cones; the most common form, about 1% of men; ΔE 60.2 from the original

Tritanopia#FF4962no blue cones; rare, and affects men and women equally; ΔE 27.9 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text2.82:1WCAG large text: Fail

Contrast with black, large text7.43:1WCAG large text: AAA

Named colours

Tomato · ΔE 5.6 Coral · ΔE 10 Chocolate · ΔE 19.7 Salmon · ΔE 23.4 Orange red · ΔE 23.8 Firebrick · ΔE 27.5

Nearest named CSS colourTomato (#FF6347)ΔE 5.58, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#42D6FF

Analogous#FF4278, #FFCA42

Triadic#42FF6B, #6B42FF

Split complementary#42FFC9, #4278FF

Tetradic#77FF42, #42D6FF, #C942FF

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FFFFFF

Lighter +30%#FFE3DB

Lighter +20%#FFBBA8

Lighter +10%#FF9375

Darker −10%#FF430F

Darker −20%#DB3000

Darker −30%#A82400

Darker −40%#751900

More saturated +25%#FF6B42

Less saturated −25%#E7785A

Channel breakdown

R255

G107

B66

Red255 (100%)

Green107 (42%)

Blue66 (25.9%)

Hue13.02°

Saturation (HSL)100%

Lightness62.94%

Dominant channelRed

Hex per channelR FF · G 6B · B 42

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

FF6B42 (chemical formula)

Formula
587.006 g/mol
49 atoms

FF6B42 has a molar mass of 587.006 g/mol, made up of 49 atoms across 2 elements: 7 × F, 42 × B.

Open this reading on its own page →

Molar mass

Molar mass587.006 g/mol

Total atoms per molecule49

Distinct elements2

Mass of one molecule9.747464 × 10^-22 g

Molecules per gram1.0259079 × 10^21

Composition by mass

F22.7%

B77.3%

Fluorine (F × 7)132.986 g/mol, 22.655%

Boron (B × 42)454.02 g/mol, 77.345%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Nerdulate something else

Nothing in mind? Surprise me · today’s page