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Recognised as Colour

#2D28D8

  • #2D28D8
  • Blue
  • Dark
  • Nearest: Medium blue

#2D28D8 is a blue with RGB values 45, 40, 216 and HSL 242°, 69%, 50%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#2D28D8#2D28D8
HEX#2D28D8
RGBrgb(45, 40, 216)
RGB (0–1)0.1765, 0.1569, 0.8471
RGB percentages17.6%, 15.7%, 84.7%
HSLhsl(241.7, 69.3%, 50.2%)
HSV / HSBhsv(241.7, 81.5%, 84.7%)
CMYK79.2%, 81.5%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,959,576
CSS custom property--colour: #2D28D8;

Brightness & contrast

Relative luminance0.07033WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.73:1
Contrast with white8.73:1WCAG normal text: AAA
Contrast with black2.41:1WCAG normal text: Fail
Greyscale equivalent#363636
Inverted#D2D727

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0054DDno red cones; affects about 1% of men; ΔE 29.1 from the original
Deuteranopia#0042D5no green cones; the most common form, about 1% of men; ΔE 18.8 from the original
Tritanopia#006182no blue cones; rare, and affects men and women equally; ΔE 93.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.73:1WCAG large text: AAA
Contrast with black, large text2.41:1WCAG large text: Fail

Named colours

Medium blue · ΔE 11.8Blue violet · ΔE 18.8Dark violet · ΔE 24.7Dark blue · ΔE 26.1Dark orchid · ΔE 29.3Blue · ΔE 29.4
Nearest named CSS colourMedium blue (#0000CD)ΔE 11.8, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D3D828
Analogous#287BD8, #8528D8
Triadic#D82D28, #28D82D
Split complementary#D88528, #7BD828
Tetradic#D8287B, #D3D828, #28D885

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D6D5F7
Lighter +30%#ABAAEF
Lighter +20%#817EE8
Lighter +10%#5753E0
Darker −10%#241FAE
Darker −20%#1B1882
Darker −30%#121057
Darker −40%#09082C
More saturated +25%#0F08F8
Less saturated −25%#4B48B8

Channel breakdown

R45
G40
B216
Red45 (17.6%)
Green40 (15.7%)
Blue216 (84.7%)
Hue241.7°
Saturation (HSL)69.29%
Lightness50.2%
Dominant channelBlue
Hex per channelR 2D · G 28 · B D8

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Every value on this page was computed from “2d28d8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.