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Colour

#003DFF

  • #003DFF
  • Blue
  • Dark
  • Nearest: Medium blue

#003DFF is a blue with RGB values 0, 61, 255 and HSL 226°, 100%, 50%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Medium blue.

Colour values

#003DFF#003DFF
HEX#003DFF
RGBrgb(0, 61, 255)
RGB (0–1)0, 0.2392, 1
RGB percentages0%, 23.9%, 100%
HSLhsl(225.6, 100%, 50%)
HSV / HSBhsv(225.6, 100%, 100%)
CMYK100%, 76.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,871
CSS custom property--colour: #003DFF;

Brightness & contrast

Relative luminance0.10557WCAG 2.x, 0 is black and 1 is white
Perceived brightness98 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.75:1
Contrast with white6.75:1WCAG normal text: AA
Contrast with black3.11:1WCAG normal text: Fail
Greyscale equivalent#3E3E3E
Inverted#FFC200

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0067FFno red cones; affects about 1% of men; ΔE 30.9 from the original
Deuteranopia#004FFCno green cones; the most common form, about 1% of men; ΔE 13.8 from the original
Tritanopia#00799Dno blue cones; rare, and affects men and women equally; ΔE 102.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.75:1WCAG large text: AAA
Contrast with black, large text3.11:1WCAG large text: AA

Named colours

Medium blue · ΔE 16.7Blue · ΔE 23.3Blue violet · ΔE 24.7Dark violet · ΔE 31.4Dark orchid · ΔE 37.6Dark blue · ΔE 38.3
Nearest named CSS colourMedium blue (#0000CD)ΔE 16.68, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFC200
Analogous#00BDFF, #4200FF
Triadic#FF003D, #3DFF00
Split complementary#FF4200, #BDFF00
Tetradic#FF00BD, #FFC200, #00FF42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CCD8FF
Lighter +30%#99B1FF
Lighter +20%#668BFF
Lighter +10%#3364FF
Darker −10%#0031CC
Darker −20%#002599
Darker −30%#001866
Darker −40%#000C33
More saturated +25%#003DFF
Less saturated −25%#204EDF

Channel breakdown

R0
G61
B255
Red0 (0%)
Green61 (23.9%)
Blue255 (100%)
Hue225.65°
Saturation (HSL)100%
Lightness50%
Dominant channelBlue
Hex per channelR 00 · G 3D · B FF

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Every value on this page was computed from “003dff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.