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Recognised as Colour

#4357CD

  • #4357CD
  • Blue
  • Dark
  • Nearest: Royal blue

#4357CD is a blue with RGB values 67, 87, 205 and HSL 231°, 58%, 53%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#4357CD#4357CD
HEX#4357CD
RGBrgb(67, 87, 205)
RGB (0–1)0.2627, 0.3412, 0.8039
RGB percentages26.3%, 34.1%, 80.4%
HSLhsl(231.3, 58%, 53.3%)
HSV / HSBhsv(231.3, 67.3%, 80.4%)
CMYK67.3%, 57.6%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,413,389
CSS custom property--colour: #4357CD;

Brightness & contrast

Relative luminance0.12417WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.03:1
Contrast with white6.03:1WCAG normal text: AA
Contrast with black3.48:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#BCA832

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0069D1no red cones; affects about 1% of men; ΔE 16.1 from the original
Deuteranopia#005DCBno green cones; the most common form, about 1% of men; ΔE 10.1 from the original
Tritanopia#007489no blue cones; rare, and affects men and women equally; ΔE 67.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.03:1WCAG large text: AAA
Contrast with black, large text3.48:1WCAG large text: AA

Named colours

Royal blue · ΔE 7.7Slate blue · ΔE 8.5Medium slateblue · ΔE 14.6Medium purple · ΔE 19.7Rebecca purple · ΔE 22.2Dark slateblue · ΔE 24.6
Nearest named CSS colourRoyal blue (#4169E1)ΔE 7.71, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CDB943
Analogous#439CCD, #7443CD
Triadic#CD4357, #57CD43
Split complementary#CD7443, #9CCD43
Tetradic#CD439C, #CDB943, #43CD74

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E4E7F8
Lighter +30%#BCC3ED
Lighter +20%#949FE2
Lighter +10%#6B7BD8
Darker −10%#2E41AF
Darker −20%#243286
Darker −30%#19235E
Darker −40%#0E1436
More saturated +25%#2542EB
Less saturated −25%#616CAF

Channel breakdown

R67
G87
B205
Red67 (26.3%)
Green87 (34.1%)
Blue205 (80.4%)
Hue231.3°
Saturation (HSL)57.98%
Lightness53.33%
Dominant channelBlue
Hex per channelR 43 · G 57 · B CD

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Every value on this page was computed from “4357cd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.