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Recognised as Colour

#274FA4

  • #274FA4
  • Blue
  • Dark
  • Nearest: Dark slateblue

#274FA4 is a blue with RGB values 39, 79, 164 and HSL 221°, 62%, 40%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#274FA4#274FA4
HEX#274FA4
RGBrgb(39, 79, 164)
RGB (0–1)0.1529, 0.3098, 0.6431
RGB percentages15.3%, 31%, 64.3%
HSLhsl(220.8, 61.6%, 39.8%)
HSV / HSBhsv(220.8, 76.2%, 64.3%)
CMYK76.2%, 51.8%, 0%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,576,292
CSS custom property--colour: #274FA4;

Brightness & contrast

Relative luminance0.08704WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.66:1
Contrast with white7.66:1WCAG normal text: AAA
Contrast with black2.74:1WCAG normal text: Fail
Greyscale equivalent#4D4D4D
Inverted#D8B05B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1859A7no red cones; affects about 1% of men; ΔE 7.9 from the original
Deuteranopia#004EA2no green cones; the most common form, about 1% of men; ΔE 3.5 from the original
Tritanopia#006372no blue cones; rare, and affects men and women equally; ΔE 49.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.66:1WCAG large text: AAA
Contrast with black, large text2.74:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.8Royal blue · ΔE 21.7Slate blue · ΔE 22.8Midnight blue · ΔE 24.4Rebecca purple · ΔE 26.1Cornflower blue · ΔE 27.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.83, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A47C27
Analogous#278EA4, #3D27A4
Triadic#A4274F, #4FA427
Split complementary#A43E27, #8EA427
Tetradic#A4278E, #A47C27, #27A43E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACC0EB
Lighter +30%#83A1E1
Lighter +20%#5982D8
Lighter +10%#3163CD
Darker −10%#1D3B7B
Darker −20%#132752
Darker −30%#0A1328
Darker −40%#000000
More saturated +25%#0E46BD
Less saturated −25%#40588B

Channel breakdown

R39
G79
B164
Red39 (15.3%)
Green79 (31%)
Blue164 (64.3%)
Hue220.8°
Saturation (HSL)61.58%
Lightness39.8%
Dominant channelBlue
Hex per channelR 27 · G 4F · B A4

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Every value on this page was computed from “274fa4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.