Recognised as Colour

#CB5700

#CB5700
Orange
Dark
Nearest: Chocolate

#CB5700 is a orange with RGB values 203, 87, 0 and HSL 26°, 100%, 40%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Chocolate.

Colour values

#CB5700#CB5700

HEX#CB5700

RGBrgb(203, 87, 0)

RGB (0–1)0.7961, 0.3412, 0

RGB percentages79.6%, 34.1%, 0%

HSLhsl(25.7, 100%, 39.8%)

HSV / HSBhsv(25.7, 100%, 79.6%)

CMYK0%, 57.1%, 100%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,326,080

CSS custom property--colour: #CB5700;

Brightness & contrast

Relative luminance0.19513WCAG 2.x, 0 is black and 1 is white

Perceived brightness129.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.9:1

Contrast with white4.28:1WCAG normal text: Fail

Contrast with black4.9:1WCAG normal text: AA

Greyscale equivalent#696969

Inverted#34A8FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#796A00no red cones; affects about 1% of men; ΔE 48.3 from the original

Deuteranopia#958400no green cones; the most common form, about 1% of men; ΔE 48.3 from the original

Tritanopia#E03A4Ano blue cones; rare, and affects men and women equally; ΔE 37 from the original

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

Contrast with white, large text4.28:1WCAG large text: AA

Contrast with black, large text4.9:1WCAG large text: AAA

Named colours

Chocolate · ΔE 8.5 Coral · ΔE 21 Tomato · ΔE 23.5 Dark orange · ΔE 24.1 Orange red · ΔE 27 Peru · ΔE 27.1

Nearest named CSS colourChocolate (#D2691E)ΔE 8.48, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0074CB

Analogous#CB000E, #CBBD00

Triadic#00CB57, #5700CB

Split complementary#00CBBD, #000ECB

Tetradic#0ECB00, #0074CB, #BD00CB

Tints, shades & saturation

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

Lighter +40%#FFC498

Lighter +30%#FFA765

Lighter +20%#FF8A32

Lighter +10%#FE6D00

Darker −10%#984100

Darker −20%#652B00

Darker −30%#321500

Darker −40%#000000

More saturated +25%#CB5700

Less saturated −25%#B25B19

Channel breakdown

R203

G87

Red203 (79.6%)

Green87 (34.1%)

Blue0 (0%)

Hue25.71°

Saturation (HSL)100%

Lightness39.8%

Dominant channelRed

Hex per channelR CB · G 57 · B 00

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CB5700 (chemical formula)

Formula
61,629.011 g/mol
5701 atoms

CB5700 has a molar mass of 61,629.011 g/mol, made up of 5701 atoms across 2 elements: 1 × C, 5700 × B.

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Molar mass

Molar mass61,629.011 g/mol

Total atoms per molecule5701

Distinct elements2

Mass of one molecule1.0233738 × 10^-19 g

Molecules per gram9.7716005 × 10^18

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

C0%

B100%

Carbon (C)12.011 g/mol, 0.019%

Boron (B × 5700)61,617 g/mol, 99.981%

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