Recognised as Colour

#FFCA55

#FFCA55
Orange
Light
Nearest: Goldenrod

#FFCA55 is a orange with RGB values 255, 202, 85 and HSL 41°, 100%, 67%. It is a light colour, so black text on it reaches 13.8:1 contrast (AAA for normal text). The nearest named colour is Goldenrod.

Colour values

#FFCA55#FFCA55

HEX#FFCA55

RGBrgb(255, 202, 85)

RGB (0–1)1, 0.7922, 0.3333

RGB percentages100%, 79.2%, 33.3%

HSLhsl(41.3, 100%, 66.7%)

HSV / HSBhsv(41.3, 66.7%, 100%)

CMYK0%, 20.8%, 66.7%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,763,477

CSS custom property--colour: #FFCA55;

Brightness & contrast

Relative luminance0.64157WCAG 2.x, 0 is black and 1 is white

Perceived brightness210.3 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 13.83:1

Contrast with white1.52:1WCAG normal text: Fail

Contrast with black13.83:1WCAG normal text: AAA

Greyscale equivalent#CDCDCD

Inverted#0035AA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#E1CA47no red cones; affects about 1% of men; ΔE 13.8 from the original

Deuteranopia#EED75Ano green cones; the most common form, about 1% of men; ΔE 13.5 from the original

Tritanopia#FFB9B1no blue cones; rare, and affects men and women equally; ΔE 52.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.52:1WCAG large text: Fail

Contrast with black, large text13.83:1WCAG large text: AAA

Named colours

Goldenrod · ΔE 14.3 Orange · ΔE 24.6 Dark goldenrod · ΔE 25 Sandy brown · ΔE 25.3 Khaki · ΔE 25.3 Gold · ΔE 25.4

Nearest named CSS colourGoldenrod (#DAA520)ΔE 14.31, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#558AFF

Analogous#FF7555, #DFFF55

Triadic#55FFCA, #CA55FF

Split complementary#55DFFF, #7555FF

Tetradic#55FF75, #558AFF, #FF55DF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFAEE

Lighter +20%#FFEABB

Lighter +10%#FFDA88

Darker −10%#FFBA22

Darker −20%#EEA400

Darker −30%#BB8100

Darker −40%#885E00

More saturated +25%#FFCA55

Less saturated −25%#EAC26A

Channel breakdown

R255

G202

B85

Red255 (100%)

Green202 (79.2%)

Blue85 (33.3%)

Hue41.29°

Saturation (HSL)100%

Lightness66.67%

Dominant channelRed

Hex per channelR FF · G CA · B 55

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FFCa55 (chemical formula)

Formula
2,242.286 g/mol
57 atoms

FFCa55 has a molar mass of 2,242.286 g/mol, made up of 57 atoms across 2 elements: 2 × F, 55 × Ca.

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Molar mass

Molar mass2,242.286 g/mol

Total atoms per molecule57

Distinct elements2

Mass of one molecule3.7234035 × 10^-21 g

Molecules per gram2.6857148 × 10^20

Name

NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show

Composition by mass

F1.7%

Ca98.3%

Fluorine (F × 2)37.996 g/mol, 1.695%

Calcium (Ca × 55)2,204.29 g/mol, 98.305%

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Elements in this formula

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