Nerdulator> put something in

Recognised as Colour

#381FFF

  • #381FFF
  • Blue
  • Dark
  • Nearest: Blue

#381FFF is a blue with RGB values 56, 31, 255 and HSL 247°, 100%, 56%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#381FFF#381FFF
HEX#381FFF
RGBrgb(56, 31, 255)
RGB (0–1)0.2196, 0.1216, 1
RGB percentages22%, 12.2%, 100%
HSLhsl(246.7, 100%, 56.1%)
HSV / HSBhsv(246.7, 87.8%, 100%)
CMYK78%, 87.8%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,678,207
CSS custom property--colour: #381FFF;

Brightness & contrast

Relative luminance0.09041WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.48:1
Contrast with white7.48:1WCAG normal text: AAA
Contrast with black2.81:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#C7E000

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005FFFno red cones; affects about 1% of men; ΔE 39.4 from the original
Deuteranopia#004AFBno green cones; the most common form, about 1% of men; ΔE 25.5 from the original
Tritanopia#006E98no blue cones; rare, and affects men and women equally; ΔE 110.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.48:1WCAG large text: AAA
Contrast with black, large text2.81:1WCAG large text: Fail

Named colours

Blue · ΔE 9.1Medium blue · ΔE 16.4Blue violet · ΔE 27.8Dark violet · ΔE 31.5Dark orchid · ΔE 43Dark blue · ΔE 45.6
Nearest named CSS colourBlue (#0000FF)ΔE 9.11, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E6FF1F
Analogous#1F76FF, #A81FFF
Triadic#FF381F, #1FFF38
Split complementary#FFA81F, #76FF1F
Tetradic#FF1F76, #E6FF1F, #1FFFA8

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDEBFF
Lighter +30%#C0B8FF
Lighter +20%#9385FF
Lighter +10%#6552FF
Darker −10%#1A00EB
Darker −20%#1500B8
Darker −30%#0F0085
Darker −40%#090052
More saturated +25%#381FFF
Less saturated −25%#4E3BE3

Channel breakdown

R56
G31
B255
Red56 (22%)
Green31 (12.2%)
Blue255 (100%)
Hue246.7°
Saturation (HSL)100%
Lightness56.08%
Dominant channelBlue
Hex per channelR 38 · G 1F · B FF

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 “381fff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.