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Colour

#00647A

  • #00647A
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#00647A is a cyan with RGB values 0, 100, 122 and HSL 191°, 100%, 24%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#00647A#00647A
HEX#00647A
RGBrgb(0, 100, 122)
RGB (0–1)0, 0.3922, 0.4784
RGB percentages0%, 39.2%, 47.8%
HSLhsl(190.8, 100%, 23.9%)
HSV / HSBhsv(190.8, 100%, 47.8%)
CMYK100%, 18%, 0%, 52.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer25,722
CSS custom property--colour: #00647A;

Brightness & contrast

Relative luminance0.10519WCAG 2.x, 0 is black and 1 is white
Perceived brightness87 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.77:1
Contrast with white6.77:1WCAG normal text: AA
Contrast with black3.1:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#FF9B85

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#57617Bno red cones; affects about 1% of men; ΔE 19.4 from the original
Deuteranopia#48577Ano green cones; the most common form, about 1% of men; ΔE 20.3 from the original
Tritanopia#006B6Bno blue cones; rare, and affects men and women equally; ΔE 15 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.77:1WCAG large text: AAA
Contrast with black, large text3.1:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 17.9Teal · ΔE 19.1Slate grey · ΔE 21.8Dark cyan · ΔE 22.2Steel blue · ΔE 22.4Light slate grey · ΔE 23.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 17.88, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7A1600
Analogous#007A53, #00277A
Triadic#7A0064, #647A00
Split complementary#7A0027, #7A5300
Tetradic#53007A, #7A1600, #277A00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#47DEFF
Lighter +30%#14D5FF
Lighter +20%#00B8E0
Lighter +10%#008EAD
Darker −10%#003A47
Darker −20%#001014
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00647A
Less saturated −25%#0F5A6B

Channel breakdown

R0
G100
B122
Red0 (0%)
Green100 (39.2%)
Blue122 (47.8%)
Hue190.82°
Saturation (HSL)100%
Lightness23.92%
Dominant channelBlue
Hex per channelR 00 · G 64 · B 7A

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Every value on this page was computed from “00647a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.