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Colour

#2B4798

  • #2B4798
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2B4798 is a blue with RGB values 43, 71, 152 and HSL 225°, 56%, 38%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2B4798#2B4798
HEX#2B4798
RGBrgb(43, 71, 152)
RGB (0–1)0.1686, 0.2784, 0.5961
RGB percentages16.9%, 27.8%, 59.6%
HSLhsl(224.6, 55.9%, 38.2%)
HSV / HSBhsv(224.6, 71.7%, 59.6%)
CMYK71.7%, 53.3%, 0%, 40.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,836,376
CSS custom property--colour: #2B4798;

Brightness & contrast

Relative luminance0.07287WCAG 2.x, 0 is black and 1 is white
Perceived brightness78.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.55:1
Contrast with white8.55:1WCAG normal text: AAA
Contrast with black2.46:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#D4B867

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#11529Bno red cones; affects about 1% of men; ΔE 9.7 from the original
Deuteranopia#004896no green cones; the most common form, about 1% of men; ΔE 5.4 from the original
Tritanopia#005A68no blue cones; rare, and affects men and women equally; ΔE 48.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.55:1WCAG large text: AAA
Contrast with black, large text2.46:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 9.6Midnight blue · ΔE 21.4Slate blue · ΔE 24.2Rebecca purple · ΔE 24.5Royal blue · ΔE 24.8Medium purple · ΔE 29.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 9.57, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#987C2B
Analogous#2B7E98, #452B98
Triadic#982B47, #47982B
Split complementary#98452B, #7E982B
Tetradic#982B7E, #987C2B, #2B9845

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A8B8E7
Lighter +30%#8198DB
Lighter +20%#5978D0
Lighter +10%#365AC0
Darker −10%#203470
Darker −20%#152248
Darker −30%#090F21
Darker −40%#000000
More saturated +25%#133BB0
Less saturated −25%#435380

Channel breakdown

R43
G71
B152
Red43 (16.9%)
Green71 (27.8%)
Blue152 (59.6%)
Hue224.59°
Saturation (HSL)55.9%
Lightness38.24%
Dominant channelBlue
Hex per channelR 2B · G 47 · B 98

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Every value on this page was computed from “2b4798” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.