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Recognised as Colour

#023DD3

  • #023DD3
  • Blue
  • Dark
  • Nearest: Dark blue

#023DD3 is a blue with RGB values 2, 61, 211 and HSL 223°, 98%, 42%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#023DD3#023DD3
HEX#023DD3
RGBrgb(2, 61, 211)
RGB (0–1)0.0078, 0.2392, 0.8275
RGB percentages0.8%, 23.9%, 82.7%
HSLhsl(223.1, 98.1%, 41.8%)
HSV / HSBhsv(223.1, 99.1%, 82.7%)
CMYK99.1%, 71.1%, 0%, 17.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer146,899
CSS custom property--colour: #023DD3;

Brightness & contrast

Relative luminance0.08054WCAG 2.x, 0 is black and 1 is white
Perceived brightness85.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.04:1
Contrast with white8.04:1WCAG normal text: AAA
Contrast with black2.61:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#FDC22C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005AD7no red cones; affects about 1% of men; ΔE 21.2 from the original
Deuteranopia#0047D0no green cones; the most common form, about 1% of men; ΔE 9.2 from the original
Tritanopia#006884no blue cones; rare, and affects men and women equally; ΔE 82.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.04:1WCAG large text: AAA
Contrast with black, large text2.61:1WCAG large text: Fail

Named colours

Dark blue · ΔE 23.1Medium slateblue · ΔE 23.4Navy · ΔE 26.1Slate blue · ΔE 26.2Blue violet · ΔE 27Medium blue · ΔE 27
Nearest named CSS colourDark blue (#00008B)ΔE 23.05, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D39802
Analogous#02A6D3, #2F02D3
Triadic#D3023D, #3DD302
Split complementary#D32F02, #A6D302
Tetradic#D302A6, #D39802, #02D32F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A3BDFE
Lighter +30%#7098FE
Lighter +20%#3E74FD
Lighter +10%#0B4FFD
Darker −10%#022EA0
Darker −20%#01206E
Darker −30%#01113B
Darker −40%#000309
More saturated +25%#003CD5
Less saturated −25%#1D49B8

Channel breakdown

R2
G61
B211
Red2 (0.8%)
Green61 (23.9%)
Blue211 (82.7%)
Hue223.06°
Saturation (HSL)98.12%
Lightness41.76%
Dominant channelBlue
Hex per channelR 02 · G 3D · B D3

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Every value on this page was computed from “023dd3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.