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Recognised as Colour

#1F0CB5

  • #1F0CB5
  • Blue
  • Dark
  • Nearest: Medium blue

#1F0CB5 is a blue with RGB values 31, 12, 181 and HSL 247°, 88%, 38%. It is a dark colour, so white text on it reaches 11.8:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1F0CB5#1F0CB5
HEX#1F0CB5
RGBrgb(31, 12, 181)
RGB (0–1)0.1216, 0.0471, 0.7098
RGB percentages12.2%, 4.7%, 71%
HSLhsl(246.7, 87.6%, 37.8%)
HSV / HSBhsv(246.7, 93.4%, 71%)
CMYK82.9%, 93.4%, 0%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,034,869
CSS custom property--colour: #1F0CB5;

Brightness & contrast

Relative luminance0.0389WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.81:1
Contrast with white11.81:1WCAG normal text: AAA
Contrast with black1.78:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#E0F34A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003FB9no red cones; affects about 1% of men; ΔE 29.2 from the original
Deuteranopia#002FB2no green cones; the most common form, about 1% of men; ΔE 20.1 from the original
Tritanopia#004B6Ano blue cones; rare, and affects men and women equally; ΔE 87.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.81:1WCAG large text: AAA
Contrast with black, large text1.78:1WCAG large text: Fail

Named colours

Medium blue · ΔE 14.3Dark blue · ΔE 16.5Navy · ΔE 21.7Blue violet · ΔE 22.5Dark violet · ΔE 25.8Indigo · ΔE 27.8
Nearest named CSS colourMedium blue (#0000CD)ΔE 14.27, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A2B50C
Analogous#0C4EB5, #740CB5
Triadic#B51F0C, #0CB51F
Split complementary#B5740C, #4DB50C
Tetradic#B50C4D, #A2B50C, #0CB573

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A095F8
Lighter +30%#7565F5
Lighter +20%#4B35F2
Lighter +10%#270FE5
Darker −10%#170985
Darker −20%#0F0655
Darker −30%#060226
Darker −40%#000000
More saturated +25%#1600C1
Less saturated −25%#32249D

Channel breakdown

R31
G12
B181
Red31 (12.2%)
Green12 (4.7%)
Blue181 (71%)
Hue246.75°
Saturation (HSL)87.56%
Lightness37.84%
Dominant channelBlue
Hex per channelR 1F · G 0C · B B5

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Every value on this page was computed from “1f0cb5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.