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Recognised as Colour

#3976FD

  • #3976FD
  • Blue
  • Dark
  • Nearest: Royal blue

#3976FD is a blue with RGB values 57, 118, 253 and HSL 221°, 98%, 61%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#3976FD#3976FD
HEX#3976FD
RGBrgb(57, 118, 253)
RGB (0–1)0.2235, 0.4627, 0.9922
RGB percentages22.4%, 46.3%, 99.2%
HSLhsl(221.3, 98%, 60.8%)
HSV / HSBhsv(221.3, 77.5%, 99.2%)
CMYK77.5%, 53.4%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,766,013
CSS custom property--colour: #3976FD;

Brightness & contrast

Relative luminance0.20919WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.18:1
Contrast with white4.05:1WCAG normal text: Fail
Contrast with black5.18:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#C68902

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0088FFno red cones; affects about 1% of men; ΔE 15.1 from the original
Deuteranopia#0076FAno green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#0097AEno blue cones; rare, and affects men and women equally; ΔE 73.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.05:1WCAG large text: AA
Contrast with black, large text5.18:1WCAG large text: AAA

Named colours

Royal blue · ΔE 9.1Medium slateblue · ΔE 15.6Slate blue · ΔE 18.9Dodgerblue · ΔE 20.8Medium purple · ΔE 24.7Cornflower blue · ΔE 30.9
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.1, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FDC039
Analogous#39D8FD, #5E39FD
Triadic#FD3976, #76FD39
Split complementary#FD5E39, #D8FD39
Tetradic#FD39D8, #FDC039, #39FD5E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D0DFFF
Lighter +20%#9EBCFE
Lighter +10%#6B99FE
Darker −10%#0753FC
Darker −20%#0242CE
Darker −30%#02319B
Darker −40%#012169
More saturated +25%#3775FF
Less saturated −25%#527FE4

Channel breakdown

R57
G118
B253
Red57 (22.4%)
Green118 (46.3%)
Blue253 (99.2%)
Hue221.33°
Saturation (HSL)98%
Lightness60.78%
Dominant channelBlue
Hex per channelR 39 · G 76 · B FD

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Every value on this page was computed from “3976fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.