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Colour

#0237FF

  • #0237FF
  • Blue
  • Dark
  • Nearest: Medium blue

#0237FF is a blue with RGB values 2, 55, 255 and HSL 227°, 100%, 50%. 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

#0237FF#0237FF
HEX#0237FF
RGBrgb(2, 55, 255)
RGB (0–1)0.0078, 0.2157, 1
RGB percentages0.8%, 21.6%, 100%
HSLhsl(227.4, 100%, 50.4%)
HSV / HSBhsv(227.4, 99.2%, 100%)
CMYK99.2%, 78.4%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer145,407
CSS custom property--colour: #0237FF;

Brightness & contrast

Relative luminance0.09965WCAG 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 7.02:1
Contrast with white7.02:1WCAG normal text: AAA
Contrast with black2.99:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#FDC800

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 16.1 from the original
Tritanopia#00779Cno blue cones; rare, and affects men and women equally; ΔE 105.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.02:1WCAG 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 25.4Dark 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#FFCA02
Analogous#02B5FF, #4C02FF
Triadic#FF0237, #37FF02
Split complementary#FF4B02, #B6FF02
Tetradic#FF02B5, #FFCA02, #02FF4B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CED8FF
Lighter +30%#9BB0FF
Lighter +20%#6888FF
Lighter +10%#355FFF
Darker −10%#002BCE
Darker −20%#00209B
Darker −30%#001668
Darker −40%#000B35
More saturated +25%#0237FF
Less saturated −25%#2249DF

Channel breakdown

R2
G55
B255
Red2 (0.8%)
Green55 (21.6%)
Blue255 (100%)
Hue227.43°
Saturation (HSL)100%
Lightness50.39%
Dominant channelBlue
Hex per channelR 02 · G 37 · B FF

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Every value on this page was computed from “0237ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.