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Recognised as Colour

#387CAE

  • #387CAE
  • Blue
  • Dark
  • Nearest: Steel blue

#387CAE is a blue with RGB values 56, 124, 174 and HSL 205°, 51%, 45%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#387CAE#387CAE
HEX#387CAE
RGBrgb(56, 124, 174)
RGB (0–1)0.2196, 0.4863, 0.6824
RGB percentages22%, 48.6%, 68.2%
HSLhsl(205.4, 51.3%, 45.1%)
HSV / HSBhsv(205.4, 67.8%, 68.2%)
CMYK67.8%, 28.7%, 0%, 31.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,701,934
CSS custom property--colour: #387CAE;

Brightness & contrast

Relative luminance0.18312WCAG 2.x, 0 is black and 1 is white
Perceived brightness115.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.66:1
Contrast with white4.5:1WCAG normal text: AA
Contrast with black4.66:1WCAG normal text: AA
Greyscale equivalent#717171
Inverted#C78351

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#657DB0no red cones; affects about 1% of men; ΔE 10.8 from the original
Deuteranopia#5571ADno green cones; the most common form, about 1% of men; ΔE 12.6 from the original
Tritanopia#00888Dno blue cones; rare, and affects men and women equally; ΔE 31.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.5:1WCAG large text: AAA
Contrast with black, large text4.66:1WCAG large text: AAA

Named colours

Steel blue · ΔE 2.9Slate grey · ΔE 22.7Light slate grey · ΔE 22.7Cornflower blue · ΔE 25Deep skyblue · ΔE 27.7Light skyblue · ΔE 30.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 2.87, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AE6A38
Analogous#38AEA5, #3841AE
Triadic#AE387C, #7CAE38
Split complementary#AE3841, #AEA538
Tetradic#A538AE, #AE6A38, #41AE38

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C6DCEC
Lighter +30%#9FC4E0
Lighter +20%#78ADD4
Lighter +10%#5295C7
Darker −10%#2C6187
Darker −20%#1F4561
Darker −30%#132A3A
Darker −40%#060E14
More saturated +25%#1B80CB
Less saturated −25%#557891

Channel breakdown

R56
G124
B174
Red56 (22%)
Green124 (48.6%)
Blue174 (68.2%)
Hue205.42°
Saturation (HSL)51.3%
Lightness45.1%
Dominant channelBlue
Hex per channelR 38 · G 7C · B AE

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Every value on this page was computed from “387cae” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.