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Recognised as Colour

#033F47

  • #033F47
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#033F47 is a cyan with RGB values 3, 63, 71 and HSL 187°, 92%, 15%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#033F47#033F47
HEX#033F47
RGBrgb(3, 63, 71)
RGB (0–1)0.0118, 0.2471, 0.2784
RGB percentages1.2%, 24.7%, 27.8%
HSLhsl(187.1, 91.9%, 14.5%)
HSV / HSBhsv(187.1, 95.8%, 27.8%)
CMYK95.8%, 11.3%, 0%, 72.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer212,807
CSS custom property--colour: #033F47;

Brightness & contrast

Relative luminance0.04029WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.63:1
Contrast with white11.63:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#FCC0B8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#383C47no red cones; affects about 1% of men; ΔE 15.7 from the original
Deuteranopia#2F3647no green cones; the most common form, about 1% of men; ΔE 16.1 from the original
Tritanopia#004341no blue cones; rare, and affects men and women equally; ΔE 7.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.63:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10Dim grey · ΔE 27Teal · ΔE 28.5Black · ΔE 29.4Slate grey · ΔE 31.5Dark cyan · ΔE 32.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.05, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#470B03
Analogous#03472D, #031D47
Triadic#47033F, #3F4703
Split complementary#47031D, #472D03
Tetradic#2D0347, #470B03, #1D4703

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#20DDF6
Lighter +30%#09C1DA
Lighter +20%#0796A9
Lighter +10%#056A78
Darker −10%#011416
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00414A
Less saturated −25%#0C383E

Channel breakdown

R3
G63
B71
Red3 (1.2%)
Green63 (24.7%)
Blue71 (27.8%)
Hue187.06°
Saturation (HSL)91.89%
Lightness14.51%
Dominant channelBlue
Hex per channelR 03 · G 3F · B 47

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Every value on this page was computed from “033f47” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.