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Recognised as Colour

#0337FF

  • #0337FF
  • Blue
  • Dark
  • Nearest: Medium blue

#0337FF is a blue with RGB values 3, 55, 255 and HSL 228°, 100%, 51%. It is a dark colour, so white text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0337FF#0337FF
HEX#0337FF
RGBrgb(3, 55, 255)
RGB (0–1)0.0118, 0.2157, 1
RGB percentages1.2%, 21.6%, 100%
HSLhsl(227.6, 100%, 50.6%)
HSV / HSBhsv(227.6, 98.8%, 100%)
CMYK98.8%, 78.4%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer210,943
CSS custom property--colour: #0337FF;

Brightness & contrast

Relative luminance0.09972WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.01:1
Contrast with white7.01:1WCAG normal text: AAA
Contrast with black2.99:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#FCC800

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0065FFno red cones; affects about 1% of men; ΔE 33 from the original
Deuteranopia#004DFCno green cones; the most common form, about 1% of men; ΔE 16 from the original
Tritanopia#00779Cno blue cones; rare, and affects men and women equally; ΔE 105 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.01:1WCAG large text: AAA
Contrast with black, large text2.99:1WCAG large text: Fail

Named colours

Medium blue · ΔE 15.3Blue · ΔE 19.6Blue violet · ΔE 25.3Dark violet · ΔE 31.5Dark orchid · ΔE 39.1Dark blue · ΔE 39.8
Nearest named CSS colourMedium blue (#0000CD)ΔE 15.34, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFCB03
Analogous#03B5FF, #4D03FF
Triadic#FF0337, #37FF03
Split complementary#FF4D03, #B5FF03
Tetradic#FF03B5, #FFCB03, #03FF4D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFD9FF
Lighter +30%#9CB0FF
Lighter +20%#6988FF
Lighter +10%#365FFF
Darker −10%#002BCF
Darker −20%#00209C
Darker −30%#001669
Darker −40%#000B36
More saturated +25%#0337FF
Less saturated −25%#224AE0

Channel breakdown

R3
G55
B255
Red3 (1.2%)
Green55 (21.6%)
Blue255 (100%)
Hue227.62°
Saturation (HSL)100%
Lightness50.59%
Dominant channelBlue
Hex per channelR 03 · G 37 · B FF

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Every value on this page was computed from “0337ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.