Recognised as Colour

#DB2507

#DB2507
Red
Dark
Nearest: Orange red

#DB2507 is a red with RGB values 219, 37, 7 and HSL 8°, 94%, 44%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#DB2507#DB2507

HEX#DB2507

RGBrgb(219, 37, 7)

RGB (0–1)0.8588, 0.1451, 0.0275

RGB percentages85.9%, 14.5%, 2.7%

HSLhsl(8.5, 93.8%, 44.3%)

HSV / HSBhsv(8.5, 96.8%, 85.9%)

CMYK0%, 83.1%, 96.8%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,361,863

CSS custom property--colour: #DB2507;

Brightness & contrast

Relative luminance0.16399WCAG 2.x, 0 is black and 1 is white

Perceived brightness123.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.91:1

Contrast with white4.91:1WCAG normal text: AA

Contrast with black4.28:1WCAG normal text: Fail

Greyscale equivalent#4A4A4A

Inverted#24DAF8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#645700no red cones; affects about 1% of men; ΔE 71.9 from the original

Deuteranopia#8F7F00no green cones; the most common form, about 1% of men; ΔE 72 from the original

Tritanopia#F20023no blue cones; rare, and affects men and women equally; ΔE 12.9 from the original

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

Contrast with white, large text4.91:1WCAG large text: AAA

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

Named colours

Orange red · ΔE 14.5 Red · ΔE 17.1 Tomato · ΔE 20.9 Firebrick · ΔE 24.9 Crimson · ΔE 25.4 Dark red · ΔE 30.2

Nearest named CSS colourOrange red (#FF4500)ΔE 14.51, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#07BDDB

Analogous#DB0753, #DB8F07

Triadic#07DB25, #2507DB

Split complementary#07DB8F, #0753DB

Tetradic#53DB07, #07BDDB, #8F07DB

Tints, shades & saturation

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

Lighter +40%#FDBCB1

Lighter +30%#FB9180

Lighter +20%#F9674F

Lighter +10%#F83C1D

Darker −10%#AA1D05

Darker −20%#781404

Darker −30%#470C02

Darker −40%#150401

More saturated +25%#E22000

Less saturated −25%#BF3923

Channel breakdown

R219

G37

Red219 (85.9%)

Green37 (14.5%)

Blue7 (2.7%)

Hue8.49°

Saturation (HSL)93.81%

Lightness44.31%

Dominant channelRed

Hex per channelR DB · G 25 · B 07

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Db2507 (chemical formula)

Formula
671,876 g/mol
2507 atoms

Db2507 has a molar mass of 671,876 g/mol, made up of 2507 atoms across 1 element: 2507 × Db.

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Molar mass

Molar mass671,876 g/mol

Total atoms per molecule2507

Distinct elements1

Mass of one molecule1.1156763 × 10^-18 g

Molecules per gram8.9631729 × 10^17

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

Db100%

Dubnium (Db × 2507)671,876 g/mol, 100%

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Elements in this formula

Dubnium

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