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Recognised as Colour

#376CB1

  • #376CB1
  • Blue
  • Dark
  • Nearest: Steel blue

#376CB1 is a blue with RGB values 55, 108, 177 and HSL 214°, 53%, 45%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#376CB1#376CB1
HEX#376CB1
RGBrgb(55, 108, 177)
RGB (0–1)0.2157, 0.4235, 0.6941
RGB percentages21.6%, 42.4%, 69.4%
HSLhsl(213.9, 52.6%, 45.5%)
HSV / HSBhsv(213.9, 68.9%, 69.4%)
CMYK68.9%, 39%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,632,305
CSS custom property--colour: #376CB1;

Brightness & contrast

Relative luminance0.14712WCAG 2.x, 0 is black and 1 is white
Perceived brightness106.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.33:1
Contrast with white5.33:1WCAG normal text: AA
Contrast with black3.94:1WCAG normal text: Fail
Greyscale equivalent#666666
Inverted#C8934E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4D71B4no red cones; affects about 1% of men; ΔE 4.2 from the original
Deuteranopia#3A66B0no green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#007C86no blue cones; rare, and affects men and women equally; ΔE 41.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.33:1WCAG large text: AAA
Contrast with black, large text3.94:1WCAG large text: AA

Named colours

Steel blue · ΔE 15.4Cornflower blue · ΔE 18.7Dark slateblue · ΔE 25.1Dodgerblue · ΔE 26.1Royal blue · ΔE 31.4Slate grey · ΔE 33.1
Nearest named CSS colourSteel blue (#4682B4)ΔE 15.42, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B17C37
Analogous#37A9B1, #3F37B1
Triadic#B1376C, #6CB137
Split complementary#B13F37, #A9B137
Tetradic#B137A9, #B17C37, #37B13F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C7D7ED
Lighter +30%#A0BCE1
Lighter +20%#79A1D5
Lighter +10%#5286C9
Darker −10%#2B548A
Darker −20%#1F3D63
Darker −30%#13253C
Darker −40%#070D15
More saturated +25%#1A68CE
Less saturated −25%#547094

Channel breakdown

R55
G108
B177
Red55 (21.6%)
Green108 (42.4%)
Blue177 (69.4%)
Hue213.93°
Saturation (HSL)52.59%
Lightness45.49%
Dominant channelBlue
Hex per channelR 37 · G 6C · B B1

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Every value on this page was computed from “376cb1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.