Nerdulator> put something in

Recognised as Colour

#2D3DB1

  • #2D3DB1
  • Blue
  • Dark
  • Nearest: Slate blue

#2D3DB1 is a blue with RGB values 45, 61, 177 and HSL 233°, 59%, 44%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#2D3DB1#2D3DB1
HEX#2D3DB1
RGBrgb(45, 61, 177)
RGB (0–1)0.1765, 0.2392, 0.6941
RGB percentages17.6%, 23.9%, 69.4%
HSLhsl(232.7, 59.5%, 43.5%)
HSV / HSBhsv(232.7, 74.6%, 69.4%)
CMYK74.6%, 65.5%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,964,913
CSS custom property--colour: #2D3DB1;

Brightness & contrast

Relative luminance0.0707WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.7:1
Contrast with white8.7:1WCAG normal text: AAA
Contrast with black2.41:1WCAG normal text: Fail
Greyscale equivalent#424242
Inverted#D2C24E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0051B5no red cones; affects about 1% of men; ΔE 16.1 from the original
Deuteranopia#0045AFno green cones; the most common form, about 1% of men; ΔE 9.3 from the original
Tritanopia#005C71no blue cones; rare, and affects men and women equally; ΔE 67 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.7:1WCAG large text: AAA
Contrast with black, large text2.41:1WCAG large text: Fail

Named colours

Slate blue · ΔE 14.6Royal blue · ΔE 18Rebecca purple · ΔE 18.2Medium slateblue · ΔE 21.3Midnight blue · ΔE 21.4Indigo · ΔE 22.9
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 14.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B1A12D
Analogous#2D7FB1, #5F2DB1
Triadic#B12D3D, #3DB12D
Split complementary#B15F2D, #7FB12D
Tetradic#B12D7F, #B1A12D, #2DB15F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCC2EE
Lighter +30%#939DE4
Lighter +20%#6B78D9
Lighter +10%#4253CF
Darker −10%#232F88
Darker −20%#182160
Darker −30%#0E1337
Darker −40%#04050E
More saturated +25%#1128CD
Less saturated −25%#495295

Channel breakdown

R45
G61
B177
Red45 (17.6%)
Green61 (23.9%)
Blue177 (69.4%)
Hue232.73°
Saturation (HSL)59.46%
Lightness43.53%
Dominant channelBlue
Hex per channelR 2D · G 3D · B B1

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “2d3db1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.