Recognised as Colour
#DB1B30
- #DB1B30
- Red
- Dark
- Nearest: Crimson
#DB1B30 is a red with RGB values 219, 27, 48 and HSL 353°, 78%, 48%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#DB1B30#DB1B30
HEX#DB1B30
RGBrgb(219, 27, 48)
RGB (0–1)0.8588, 0.1059, 0.1882
RGB percentages85.9%, 10.6%, 18.8%
HSLhsl(353.4, 78%, 48.2%)
HSV / HSBhsv(353.4, 87.7%, 85.9%)
CMYK0%, 87.7%, 78.1%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,359,344
CSS custom property--colour: #DB1B30;
Brightness & contrast
Relative luminance0.16057WCAG 2.x, 0 is black and 1 is white
Perceived brightness122.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.99:1
Contrast with white4.99:1WCAG normal text: AA
Contrast with black4.21:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#24E4CF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.99:1WCAG large text: AAA
Contrast with black, large text4.21:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1BDBC6
Analogous#DB1B90, #DB661B
Triadic#30DB1B, #1B30DB
Split complementary#1BDB66, #1B90DB
Tetradic#90DB1B, #1BDBC6, #661BDB
Tints, shades & saturation
Channel breakdown
R219
G27
B48
Red219 (85.9%)
Green27 (10.6%)
Blue48 (18.8%)
Hue353.44°
Saturation (HSL)78.05%
Lightness48.24%
Dominant channelRed
Hex per channelR DB · G 1B · B 30
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Also reads as
Db1B30 (chemical formula)
- Formula
- 592.3 g/mol
- 31 atoms
Db1B30 has a molar mass of 592.3 g/mol, made up of 31 atoms across 2 elements: 1 × Db, 30 × B.
Molar mass
Molar mass592.3 g/mol
Total atoms per molecule31
Distinct elements2
Mass of one molecule9.8353729 × 10^-22 g
Molecules per gram1.0167383 × 10^21
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
Db45.2%
B54.8%
Dubnium (Db)268 g/mol, 45.247%
Boron (B × 30)324.3 g/mol, 54.753%
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nerdulate something else
Nothing in mind? Surprise me · today’s page