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Recognised as Colour

#004755

  • #004755
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#004755 is a cyan with RGB values 0, 71, 85 and HSL 190°, 100%, 17%. It is a dark colour, so white text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#004755#004755
HEX#004755
RGBrgb(0, 71, 85)
RGB (0–1)0, 0.2784, 0.3333
RGB percentages0%, 27.8%, 33.3%
HSLhsl(189.9, 100%, 16.7%)
HSV / HSBhsv(189.9, 100%, 33.3%)
CMYK100%, 16.5%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer18,261
CSS custom property--colour: #004755;

Brightness & contrast

Relative luminance0.05162WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.33:1
Contrast with white10.33:1WCAG normal text: AAA
Contrast with black2.03:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#FFB8AA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3E4456no red cones; affects about 1% of men; ΔE 16.3 from the original
Deuteranopia#333D55no green cones; the most common form, about 1% of men; ΔE 16.8 from the original
Tritanopia#004C4Bno blue cones; rare, and affects men and women equally; ΔE 10.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.33:1WCAG large text: AAA
Contrast with black, large text2.03:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 11.1Dim grey · ΔE 26.1Teal · ΔE 26.4Slate grey · ΔE 28.4Dark cyan · ΔE 30.5Light slate grey · ΔE 31.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 11.14, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#550E00
Analogous#005538, #001D55
Triadic#550047, #475500
Split complementary#55001C, #553800
Tetradic#390055, #550E00, #1D5500

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#22DBFF
Lighter +30%#00C7EE
Lighter +20%#009CBB
Lighter +10%#007288
Darker −10%#001C22
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004755
Less saturated −25%#0B404A

Channel breakdown

R0
G71
B85
Red0 (0%)
Green71 (27.8%)
Blue85 (33.3%)
Hue189.88°
Saturation (HSL)100%
Lightness16.67%
Dominant channelBlue
Hex per channelR 00 · G 47 · B 55

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Every value on this page was computed from “hex 004755” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.