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Colour

#401FDD

  • #401FDD
  • Blue
  • Dark
  • Nearest: Medium blue

#401FDD is a blue with RGB values 64, 31, 221 and HSL 250°, 75%, 49%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#401FDD#401FDD
HEX#401FDD
RGBrgb(64, 31, 221)
RGB (0–1)0.251, 0.1216, 0.8667
RGB percentages25.1%, 12.2%, 86.7%
HSLhsl(250.4, 75.4%, 49.4%)
HSV / HSBhsv(250.4, 86%, 86.7%)
CMYK71%, 86%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,202,461
CSS custom property--colour: #401FDD;

Brightness & contrast

Relative luminance0.0729WCAG 2.x, 0 is black and 1 is white
Perceived brightness85.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.54:1
Contrast with white8.54:1WCAG normal text: AAA
Contrast with black2.46:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#BFE022

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0054E2no red cones; affects about 1% of men; ΔE 32.7 from the original
Deuteranopia#0044DAno green cones; the most common form, about 1% of men; ΔE 24.1 from the original
Tritanopia#005F84no blue cones; rare, and affects men and women equally; ΔE 96.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.54:1WCAG large text: AAA
Contrast with black, large text2.46:1WCAG large text: Fail

Named colours

Medium blue · ΔE 8.4Blue violet · ΔE 17.2Dark violet · ΔE 22.2Blue · ΔE 24.1Dark orchid · ΔE 30.2Dark blue · ΔE 30.2
Nearest named CSS colourMedium blue (#0000CD)ΔE 8.41, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BCDD1F
Analogous#1F5DDD, #9F1FDD
Triadic#DD401F, #1FDD40
Split complementary#DD9F1F, #5DDD1F
Tetradic#DD1F5D, #BCDD1F, #1FDD9F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D7D0F8
Lighter +30%#B1A3F2
Lighter +20%#8B76EC
Lighter +10%#6549E6
Darker −10%#3319B0
Darker −20%#261284
Darker −30%#190C57
Darker −40%#0C062A
More saturated +25%#2C00FC
Less saturated −25%#553FBE

Channel breakdown

R64
G31
B221
Red64 (25.1%)
Green31 (12.2%)
Blue221 (86.7%)
Hue250.42°
Saturation (HSL)75.4%
Lightness49.41%
Dominant channelBlue
Hex per channelR 40 · G 1F · B DD

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Every value on this page was computed from “401fdd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.