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Recognised as Colour

#379CDB

  • #379CDB
  • Blue
  • Dark
  • Nearest: Steel blue

#379CDB is a blue with RGB values 55, 156, 219 and HSL 203°, 69%, 54%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#379CDB#379CDB
HEX#379CDB
RGBrgb(55, 156, 219)
RGB (0–1)0.2157, 0.6118, 0.8588
RGB percentages21.6%, 61.2%, 85.9%
HSLhsl(203, 69.5%, 53.7%)
HSV / HSBhsv(203, 74.9%, 85.9%)
CMYK74.9%, 28.8%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,644,635
CSS custom property--colour: #379CDB;

Brightness & contrast

Relative luminance0.29704WCAG 2.x, 0 is black and 1 is white
Perceived brightness143.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.94:1
Contrast with white3.03:1WCAG normal text: Fail
Contrast with black6.94:1WCAG normal text: AA
Greyscale equivalent#8B8B8B
Inverted#C86324

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7F9DDEno red cones; affects about 1% of men; ΔE 15.2 from the original
Deuteranopia#688DDAno green cones; the most common form, about 1% of men; ΔE 17.3 from the original
Tritanopia#00ACB2no blue cones; rare, and affects men and women equally; ΔE 37.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.03:1WCAG large text: AA
Contrast with black, large text6.94:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.7Deep skyblue · ΔE 14.9Cornflower blue · ΔE 19.6Light skyblue · ΔE 22Sky blue · ΔE 26.9Dodgerblue · ΔE 29.3
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.67, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DB7637
Analogous#37DBC8, #374ADB
Triadic#DB379C, #9CDB37
Split complementary#DB374A, #DBC837
Tetradic#C837DB, #DB7637, #4ADB37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E4F2FA
Lighter +30%#B9DCF2
Lighter +20%#8DC7EB
Lighter +10%#62B1E3
Darker −10%#2281BD
Darker −20%#1A6492
Darker −30%#124667
Darker −40%#0B293B
More saturated +25%#19A3F9
Less saturated −25%#5595BE

Channel breakdown

R55
G156
B219
Red55 (21.6%)
Green156 (61.2%)
Blue219 (85.9%)
Hue203.05°
Saturation (HSL)69.49%
Lightness53.73%
Dominant channelBlue
Hex per channelR 37 · G 9C · B DB

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Every value on this page was computed from “379cdb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.