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Recognised as Colour

#023FB7

  • #023FB7
  • Blue
  • Dark
  • Nearest: Slate blue

#023FB7 is a blue with RGB values 2, 63, 183 and HSL 220°, 98%, 36%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#023FB7#023FB7
HEX#023FB7
RGBrgb(2, 63, 183)
RGB (0–1)0.0078, 0.2471, 0.7176
RGB percentages0.8%, 24.7%, 71.8%
HSLhsl(219.8, 97.8%, 36.3%)
HSV / HSBhsv(219.8, 98.9%, 71.8%)
CMYK98.9%, 65.6%, 0%, 28.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer147,383
CSS custom property--colour: #023FB7;

Brightness & contrast

Relative luminance0.06987WCAG 2.x, 0 is black and 1 is white
Perceived brightness78.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.76:1
Contrast with white8.76:1WCAG normal text: AAA
Contrast with black2.4:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#FDC048

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0053BBno red cones; affects about 1% of men; ΔE 14.9 from the original
Deuteranopia#0043B5no green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#006075no blue cones; rare, and affects men and women equally; ΔE 69 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.76:1WCAG large text: AAA
Contrast with black, large text2.4:1WCAG large text: Fail

Named colours

Slate blue · ΔE 16.9Royal blue · ΔE 17.5Medium slateblue · ΔE 22.1Rebecca purple · ΔE 22.5Midnight blue · ΔE 23.8Navy · ΔE 24
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 16.86, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B77A02
Analogous#029AB7, #2002B7
Triadic#B7023F, #3FB702
Split complementary#B71F02, #9AB702
Tetradic#B7029A, #B77A02, #02B720

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#87AFFE
Lighter +30%#558EFD
Lighter +20%#226CFD
Lighter +10%#0350E9
Darker −10%#012E85
Darker −20%#011C52
Darker −30%#000B20
Darker −40%#000000
More saturated +25%#003EB9
Less saturated −25%#1947A0

Channel breakdown

R2
G63
B183
Red2 (0.8%)
Green63 (24.7%)
Blue183 (71.8%)
Hue219.78°
Saturation (HSL)97.84%
Lightness36.27%
Dominant channelBlue
Hex per channelR 02 · G 3F · B B7

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Every value on this page was computed from “023fb7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.