Nerdulator> put something in

Recognised as Colour

#31275A

  • #31275A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#31275A is a blue with RGB values 49, 39, 90 and HSL 252°, 40%, 25%. It is a dark colour, so white text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#31275A#31275A
HEX#31275A
RGBrgb(49, 39, 90)
RGB (0–1)0.1922, 0.1529, 0.3529
RGB percentages19.2%, 15.3%, 35.3%
HSLhsl(251.8, 39.5%, 25.3%)
HSV / HSBhsv(251.8, 56.7%, 35.3%)
CMYK45.6%, 56.7%, 0%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,221,338
CSS custom property--colour: #31275A;

Brightness & contrast

Relative luminance0.02842WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.39:1
Contrast with white13.39:1WCAG normal text: AAA
Contrast with black1.57:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#CED8A5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#10305Cno red cones; affects about 1% of men; ΔE 12.8 from the original
Deuteranopia#112E59no green cones; the most common form, about 1% of men; ΔE 12.5 from the original
Tritanopia#25323Cno blue cones; rare, and affects men and women equally; ΔE 30.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.39:1WCAG large text: AAA
Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.6Midnight blue · ΔE 24.3Rebecca purple · ΔE 32.8Black · ΔE 39.9Steel blue · ΔE 40.4Indigo · ΔE 40.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.6, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#505A27
Analogous#27375A, #4B275A
Triadic#5A3127, #275A31
Split complementary#5A4A27, #375A27
Tetradic#5A2736, #505A27, #275A4A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9184C9
Lighter +30%#7260BA
Lighter +20%#5846A1
Lighter +10%#44367E
Darker −10%#1E1836
Darker −20%#0A0813
Darker −30%#000000
Darker −40%#000000
More saturated +25%#27176A
Less saturated −25%#3B374A

Channel breakdown

R49
G39
B90
Red49 (19.2%)
Green39 (15.3%)
Blue90 (35.3%)
Hue251.76°
Saturation (HSL)39.53%
Lightness25.29%
Dominant channelBlue
Hex per channelR 31 · G 27 · B 5A

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 “31275a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.