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Recognised as Colour

#2B489E

  • #2B489E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2B489E is a blue with RGB values 43, 72, 158 and HSL 225°, 57%, 39%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2B489E#2B489E
HEX#2B489E
RGBrgb(43, 72, 158)
RGB (0–1)0.1686, 0.2824, 0.6196
RGB percentages16.9%, 28.2%, 62%
HSLhsl(224.9, 57.2%, 39.4%)
HSV / HSBhsv(224.9, 72.8%, 62%)
CMYK72.8%, 54.4%, 0%, 38%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,836,638
CSS custom property--colour: #2B489E;

Brightness & contrast

Relative luminance0.07617WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.32:1
Contrast with white8.32:1WCAG normal text: AAA
Contrast with black2.52:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#D4B761

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0654A1no red cones; affects about 1% of men; ΔE 10.8 from the original
Deuteranopia#00499Cno green cones; the most common form, about 1% of men; ΔE 5.2 from the original
Tritanopia#005D6Cno blue cones; rare, and affects men and women equally; ΔE 51.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.32:1WCAG large text: AAA
Contrast with black, large text2.52:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 10.2Midnight blue · ΔE 20.9Slate blue · ΔE 21.6Royal blue · ΔE 22.1Rebecca purple · ΔE 23.1Medium purple · ΔE 27.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 10.25, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9E812B
Analogous#2B829E, #472B9E
Triadic#9E2B48, #489E2B
Split complementary#9E482B, #829E2B
Tetradic#9E2B82, #9E812B, #2B9E48

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACBCE9
Lighter +30%#849BDE
Lighter +20%#5C7AD3
Lighter +10%#365AC6
Darker −10%#203676
Darker −20%#15234E
Darker −30%#0A1126
Darker −40%#000000
More saturated +25%#123CB7
Less saturated −25%#445485

Channel breakdown

R43
G72
B158
Red43 (16.9%)
Green72 (28.2%)
Blue158 (62%)
Hue224.87°
Saturation (HSL)57.21%
Lightness39.41%
Dominant channelBlue
Hex per channelR 2B · G 48 · B 9E

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Every value on this page was computed from “2b489e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.