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Recognised as Colour

#274AB4

  • #274AB4
  • Blue
  • Dark
  • Nearest: Royal blue

#274AB4 is a blue with RGB values 39, 74, 180 and HSL 225°, 64%, 43%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Royal blue.

Colour values

#274AB4#274AB4
HEX#274AB4
RGBrgb(39, 74, 180)
RGB (0–1)0.1529, 0.2902, 0.7059
RGB percentages15.3%, 29%, 70.6%
HSLhsl(225.1, 64.4%, 42.9%)
HSV / HSBhsv(225.1, 78.3%, 70.6%)
CMYK78.3%, 58.9%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,575,028
CSS custom property--colour: #274AB4;

Brightness & contrast

Relative luminance0.08624WCAG 2.x, 0 is black and 1 is white
Perceived brightness85.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.71:1
Contrast with white7.71:1WCAG normal text: AAA
Contrast with black2.72:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#D8B54B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005AB8no red cones; affects about 1% of men; ΔE 12.8 from the original
Deuteranopia#004DB2no green cones; the most common form, about 1% of men; ΔE 5.3 from the original
Tritanopia#006577no blue cones; rare, and affects men and women equally; ΔE 61.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.71:1WCAG large text: AAA
Contrast with black, large text2.72:1WCAG large text: Fail

Named colours

Royal blue · ΔE 13.7Slate blue · ΔE 14Dark slateblue · ΔE 18.2Rebecca purple · ΔE 20.8Midnight blue · ΔE 22.5Medium slateblue · ΔE 23
Nearest named CSS colourRoyal blue (#4169E1)ΔE 13.74, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B49127
Analogous#2791B4, #4A27B4
Triadic#B4274A, #4AB427
Split complementary#B44A27, #91B427
Tetradic#B42791, #B49127, #27B44A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B7C5F0
Lighter +30%#8EA4E6
Lighter +20%#6482DD
Lighter +10%#3A60D4
Darker −10%#1E398A
Darker −20%#152860
Darker −30%#0C1636
Darker −40%#03050C
More saturated +25%#0C3CCF
Less saturated −25%#425899

Channel breakdown

R39
G74
B180
Red39 (15.3%)
Green74 (29%)
Blue180 (70.6%)
Hue225.11°
Saturation (HSL)64.38%
Lightness42.94%
Dominant channelBlue
Hex per channelR 27 · G 4A · B B4

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Every value on this page was computed from “274ab4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.