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Colour

#004A55

  • #004A55
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#004A55 is a cyan with RGB values 0, 74, 85 and HSL 188°, 100%, 17%. It is a dark colour, so white text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#004A55#004A55
HEX#004A55
RGBrgb(0, 74, 85)
RGB (0–1)0, 0.2902, 0.3333
RGB percentages0%, 29%, 33.3%
HSLhsl(187.8, 100%, 16.7%)
HSV / HSBhsv(187.8, 100%, 33.3%)
CMYK100%, 12.9%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer19,029
CSS custom property--colour: #004A55;

Brightness & contrast

Relative luminance0.05553WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.95:1
Contrast with white9.95:1WCAG normal text: AAA
Contrast with black2.11:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#FFB5AA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#414756no red cones; affects about 1% of men; ΔE 17.2 from the original
Deuteranopia#373F55no green cones; the most common form, about 1% of men; ΔE 18.5 from the original
Tritanopia#004E4Dno blue cones; rare, and affects men and women equally; ΔE 8.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.95:1WCAG large text: AAA
Contrast with black, large text2.11:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.8Teal · ΔE 24.3Dim grey · ΔE 25.6Slate grey · ΔE 28.1Dark cyan · ΔE 28.5Light slate grey · ΔE 30.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.82, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#550B00
Analogous#005535, #001F55
Triadic#55004A, #4A5500
Split complementary#550020, #553500
Tetradic#350055, #550B00, #205500

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#22E2FF
Lighter +30%#00CFEE
Lighter +20%#00A3BB
Lighter +10%#007688
Darker −10%#001E22
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004A55
Less saturated −25%#0B424A

Channel breakdown

R0
G74
B85
Red0 (0%)
Green74 (29%)
Blue85 (33.3%)
Hue187.76°
Saturation (HSL)100%
Lightness16.67%
Dominant channelBlue
Hex per channelR 00 · G 4A · B 55

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Every value on this page was computed from “004a55” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.