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Recognised as Colour

#033FAC

  • #033FAC
  • Blue
  • Dark
  • Nearest: Slate blue

#033FAC is a blue with RGB values 3, 63, 172 and HSL 219°, 97%, 34%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#033FAC#033FAC
HEX#033FAC
RGBrgb(3, 63, 172)
RGB (0–1)0.0118, 0.2471, 0.6745
RGB percentages1.2%, 24.7%, 67.5%
HSLhsl(218.7, 96.6%, 34.3%)
HSV / HSBhsv(218.7, 98.3%, 67.5%)
CMYK98.3%, 63.4%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer212,908
CSS custom property--colour: #033FAC;

Brightness & contrast

Relative luminance0.06553WCAG 2.x, 0 is black and 1 is white
Perceived brightness75.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.09:1
Contrast with white9.09:1WCAG normal text: AAA
Contrast with black2.31:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#FCC053

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0050B0no red cones; affects about 1% of men; ΔE 12.6 from the original
Deuteranopia#0041AAno green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#005C6Fno blue cones; rare, and affects men and women equally; ΔE 63.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.09:1WCAG large text: AAA
Contrast with black, large text2.31:1WCAG large text: Fail

Named colours

Slate blue · ΔE 17Royal blue · ΔE 17.5Midnight blue · ΔE 19.9Dark slateblue · ΔE 20.4Rebecca purple · ΔE 21.1Medium slateblue · ΔE 25
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 17.04, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AC7003
Analogous#0394AC, #1B03AC
Triadic#AC033F, #3FAC03
Split complementary#AC1B03, #94AC03
Tetradic#AC0394, #AC7003, #03AC1B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7EABFD
Lighter +30%#4C8BFC
Lighter +20%#1A6AFB
Lighter +10%#0451DE
Darker −10%#022D7A
Darker −20%#011A48
Darker −30%#000816
Darker −40%#000000
More saturated +25%#003EAF
Less saturated −25%#194596

Channel breakdown

R3
G63
B172
Red3 (1.2%)
Green63 (24.7%)
Blue172 (67.5%)
Hue218.7°
Saturation (HSL)96.57%
Lightness34.31%
Dominant channelBlue
Hex per channelR 03 · G 3F · B AC

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Every value on this page was computed from “033fac” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.