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Colour

#2C377B

  • #2C377B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2C377B is a blue with RGB values 44, 55, 123 and HSL 232°, 47%, 33%. It is a dark colour, so white text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2C377B#2C377B
HEX#2C377B
RGBrgb(44, 55, 123)
RGB (0–1)0.1725, 0.2157, 0.4824
RGB percentages17.3%, 21.6%, 48.2%
HSLhsl(231.6, 47.3%, 32.7%)
HSV / HSBhsv(231.6, 64.2%, 48.2%)
CMYK64.2%, 55.3%, 0%, 51.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,897,787
CSS custom property--colour: #2C377B;

Brightness & contrast

Relative luminance0.04698WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.83:1
Contrast with white10.83:1WCAG normal text: AAA
Contrast with black1.94:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#D3C884

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0B417Dno red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#003A7Ano green cones; the most common form, about 1% of men; ΔE 7.8 from the original
Tritanopia#004753no blue cones; rare, and affects men and women equally; ΔE 43 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.83:1WCAG large text: AAA
Contrast with black, large text1.94:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 9.3Midnight blue · ΔE 19.1Rebecca purple · ΔE 26.4Slate blue · ΔE 31.6Royal blue · ΔE 34.2Steel blue · ΔE 35.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 9.27, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7B702C
Analogous#2C5F7B, #482C7B
Triadic#7B2C37, #377B2C
Split complementary#7B492C, #5E7B2C
Tetradic#7B2C5F, #7B702C, #2C7B49

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#99A2DA
Lighter +30%#7380CD
Lighter +20%#4D5DC0
Lighter +10%#3948A1
Darker −10%#1F2655
Darker −20%#111530
Darker −30%#04050A
Darker −40%#000000
More saturated +25%#172890
Less saturated −25%#414666

Channel breakdown

R44
G55
B123
Red44 (17.3%)
Green55 (21.6%)
Blue123 (48.2%)
Hue231.65°
Saturation (HSL)47.31%
Lightness32.75%
Dominant channelBlue
Hex per channelR 2C · G 37 · B 7B

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Every value on this page was computed from “2c377b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.