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Recognised as Colour

#234FD9

  • #234FD9
  • Blue
  • Dark
  • Nearest: Medium slateblue

#234FD9 is a blue with RGB values 35, 79, 217 and HSL 225°, 72%, 49%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#234FD9#234FD9
HEX#234FD9
RGBrgb(35, 79, 217)
RGB (0–1)0.1373, 0.3098, 0.851
RGB percentages13.7%, 31%, 85.1%
HSLhsl(225.5, 72.2%, 49.4%)
HSV / HSBhsv(225.5, 83.9%, 85.1%)
CMYK83.9%, 63.6%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,314,201
CSS custom property--colour: #234FD9;

Brightness & contrast

Relative luminance0.10959WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.58:1
Contrast with white6.58:1WCAG normal text: AA
Contrast with black3.19:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#DCB026

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0066DDno red cones; affects about 1% of men; ΔE 17.4 from the original
Deuteranopia#0055D6no green cones; the most common form, about 1% of men; ΔE 7.1 from the original
Tritanopia#00748Dno blue cones; rare, and affects men and women equally; ΔE 76.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.58:1WCAG large text: AAA
Contrast with black, large text3.19:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 16Royal blue · ΔE 16.2Slate blue · ΔE 17.6Rebecca purple · ΔE 28.6Medium purple · ΔE 28.8Dark blue · ΔE 28.8
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 16.04, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D9AD23
Analogous#23AAD9, #5223D9
Triadic#D9234F, #4FD923
Split complementary#D95223, #AAD923
Tetradic#D923AA, #D9AD23, #23D952

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D0DAF7
Lighter +30%#A5B7F0
Lighter +20%#7994E9
Lighter +10%#4D71E2
Darker −10%#1C3FAD
Darker −20%#152F81
Darker −30%#0E1F55
Darker −40%#070F29
More saturated +25%#043FF9
Less saturated −25%#435FBA

Channel breakdown

R35
G79
B217
Red35 (13.7%)
Green79 (31%)
Blue217 (85.1%)
Hue225.49°
Saturation (HSL)72.22%
Lightness49.41%
Dominant channelBlue
Hex per channelR 23 · G 4F · B D9

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Every value on this page was computed from “234fd9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.