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Recognised as Colour

#1B60B5

  • #1B60B5
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1B60B5 is a blue with RGB values 27, 96, 181 and HSL 213°, 74%, 41%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1B60B5#1B60B5
HEX#1B60B5
RGBrgb(27, 96, 181)
RGB (0–1)0.1059, 0.3765, 0.7098
RGB percentages10.6%, 37.6%, 71%
HSLhsl(213.1, 74%, 40.8%)
HSV / HSBhsv(213.1, 85.1%, 71%)
CMYK85.1%, 47%, 0%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,794,229
CSS custom property--colour: #1B60B5;

Brightness & contrast

Relative luminance0.11935WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.2:1
Contrast with white6.2:1WCAG normal text: AA
Contrast with black3.39:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#E49F4A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3068B8no red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#005BB3no green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#007481no blue cones; rare, and affects men and women equally; ΔE 49.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.2:1WCAG large text: AAA
Contrast with black, large text3.39:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 20Cornflower blue · ΔE 21Royal blue · ΔE 21.8Dodgerblue · ΔE 22.2Slate blue · ΔE 26.1Steel blue · ΔE 26.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.04, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B5701B
Analogous#1BADB5, #231BB5
Triadic#B51B60, #60B51B
Split complementary#B5231B, #ADB51B
Tetradic#B51BAD, #B5701B, #1BB523

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AACAF2
Lighter +30%#7DAFEC
Lighter +20%#5193E5
Lighter +10%#2578DE
Darker −10%#144889
Darker −20%#0E315C
Darker −30%#071930
Darker −40%#010203
More saturated +25%#015DCF
Less saturated −25%#35639B

Channel breakdown

R27
G96
B181
Red27 (10.6%)
Green96 (37.6%)
Blue181 (71%)
Hue213.12°
Saturation (HSL)74.04%
Lightness40.78%
Dominant channelBlue
Hex per channelR 1B · G 60 · B B5

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Every value on this page was computed from “1b60b5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.