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Recognised as Colour

#2D52AB

  • #2D52AB
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2D52AB is a blue with RGB values 45, 82, 171 and HSL 222°, 58%, 42%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2D52AB#2D52AB
HEX#2D52AB
RGBrgb(45, 82, 171)
RGB (0–1)0.1765, 0.3216, 0.6706
RGB percentages17.6%, 32.2%, 67.1%
HSLhsl(222.4, 58.3%, 42.4%)
HSV / HSBhsv(222.4, 73.7%, 67.1%)
CMYK73.7%, 52%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,970,283
CSS custom property--colour: #2D52AB;

Brightness & contrast

Relative luminance0.09533WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.23:1
Contrast with white7.23:1WCAG normal text: AAA
Contrast with black2.91:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#D2AD54

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#185DAEno red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#0052A9no green cones; the most common form, about 1% of men; ΔE 4.6 from the original
Tritanopia#006776no blue cones; rare, and affects men and women equally; ΔE 52.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.23:1WCAG large text: AAA
Contrast with black, large text2.91:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.6Royal blue · ΔE 19.1Slate blue · ΔE 20.4Midnight blue · ΔE 25Rebecca purple · ΔE 25.1Medium purple · ΔE 25.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.6, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AB862D
Analogous#2D91AB, #472DAB
Triadic#AB2D52, #52AB2D
Split complementary#AB472D, #91AB2D
Tetradic#AB2D91, #AB862D, #2DAB47

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B8C7EC
Lighter +30%#8FA8E2
Lighter +20%#6788D7
Lighter +10%#3F68CC
Darker −10%#223F83
Darker −20%#182B5A
Darker −30%#0D1832
Darker −40%#030509
More saturated +25%#1247C6
Less saturated −25%#485D90

Channel breakdown

R45
G82
B171
Red45 (17.6%)
Green82 (32.2%)
Blue171 (67.1%)
Hue222.38°
Saturation (HSL)58.33%
Lightness42.35%
Dominant channelBlue
Hex per channelR 2D · G 52 · B AB

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Every value on this page was computed from “2d52ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.