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Recognised as Colour

#145BB3

  • #145BB3
  • Blue
  • Dark
  • Nearest: Dark slateblue

#145BB3 is a blue with RGB values 20, 91, 179 and HSL 213°, 80%, 39%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#145BB3#145BB3
HEX#145BB3
RGBrgb(20, 91, 179)
RGB (0–1)0.0784, 0.3569, 0.702
RGB percentages7.8%, 35.7%, 70.2%
HSLhsl(213.2, 79.9%, 39%)
HSV / HSBhsv(213.2, 88.8%, 70.2%)
CMYK88.8%, 49.2%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,334,195
CSS custom property--colour: #145BB3;

Brightness & contrast

Relative luminance0.10886WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.61:1
Contrast with white6.61:1WCAG normal text: AA
Contrast with black3.18:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#EBA44C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2564B6no red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#0056B1no green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#00707Eno blue cones; rare, and affects men and women equally; ΔE 50.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.61:1WCAG large text: AAA
Contrast with black, large text3.18:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 18.6Royal blue · ΔE 20.1Dodgerblue · ΔE 23Cornflower blue · ΔE 23.1Slate blue · ΔE 24.2Medium purple · ΔE 28.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.59, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B36C14
Analogous#14ABB3, #1C14B3
Triadic#B3145B, #5BB314
Split complementary#B31C14, #ABB314
Tetradic#B314AB, #B36C14, #14B31C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9FC5F4
Lighter +30%#71A9EF
Lighter +20%#438EEA
Lighter +10%#1972E1
Darker −10%#0F4485
Darker −20%#0A2C57
Darker −30%#051529
Darker −40%#000000
More saturated +25%#0059C7
Less saturated −25%#2D5E9A

Channel breakdown

R20
G91
B179
Red20 (7.8%)
Green91 (35.7%)
Blue179 (70.2%)
Hue213.21°
Saturation (HSL)79.9%
Lightness39.02%
Dominant channelBlue
Hex per channelR 14 · G 5B · B B3

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Every value on this page was computed from “145bb3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.