Nerdulator> put something in

Recognised as Colour

#37489A

  • #37489A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#37489A is a blue with RGB values 55, 72, 154 and HSL 230°, 47%, 41%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#37489A#37489A
HEX#37489A
RGBrgb(55, 72, 154)
RGB (0–1)0.2157, 0.2824, 0.6039
RGB percentages21.6%, 28.2%, 60.4%
HSLhsl(229.7, 47.4%, 41%)
HSV / HSBhsv(229.7, 64.3%, 60.4%)
CMYK64.3%, 53.2%, 0%, 39.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,623,066
CSS custom property--colour: #37489A;

Brightness & contrast

Relative luminance0.0778WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.22:1
Contrast with white8.22:1WCAG normal text: AAA
Contrast with black2.56:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#C8B765

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#16539Dno red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#004B98no green cones; the most common form, about 1% of men; ΔE 8.7 from the original
Tritanopia#005B6Ano blue cones; rare, and affects men and women equally; ΔE 49.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.22:1WCAG large text: AAA
Contrast with black, large text2.56:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 7.9Midnight blue · ΔE 21.1Slate blue · ΔE 22.4Rebecca purple · ΔE 22.5Royal blue · ΔE 23.9Medium purple · ΔE 27.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 7.94, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9A8937
Analogous#37799A, #58379A
Triadic#9A3748, #489A37
Split complementary#9A5737, #7A9A37
Tetradic#9A3779, #9A8937, #379A58

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B8BFE5
Lighter +30%#929ED8
Lighter +20%#6C7DCB
Lighter +10%#475BBD
Darker −10%#2A3674
Darker −20%#1C254F
Darker −30%#0F1329
Darker −40%#010204
More saturated +25%#1D37B4
Less saturated −25%#515980

Channel breakdown

R55
G72
B154
Red55 (21.6%)
Green72 (28.2%)
Blue154 (60.4%)
Hue229.7°
Saturation (HSL)47.37%
Lightness40.98%
Dominant channelBlue
Hex per channelR 37 · G 48 · B 9A

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 “37489a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.