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Recognised as Colour

#06403B

  • #06403B
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#06403B is a cyan with RGB values 6, 64, 59 and HSL 175°, 83%, 14%. 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

#06403B#06403B
HEX#06403B
RGBrgb(6, 64, 59)
RGB (0–1)0.0235, 0.251, 0.2314
RGB percentages2.4%, 25.1%, 23.1%
HSLhsl(174.8, 82.9%, 13.7%)
HSV / HSBhsv(174.8, 90.6%, 25.1%)
CMYK90.6%, 0%, 7.8%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer409,659
CSS custom property--colour: #06403B;

Brightness & contrast

Relative luminance0.04021WCAG 2.x, 0 is black and 1 is white
Perceived brightness53 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.64:1
Contrast with white11.64:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#F9BFC4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3C3C3Bno red cones; affects about 1% of men; ΔE 18.8 from the original
Deuteranopia#34363Cno green cones; the most common form, about 1% of men; ΔE 19.5 from the original
Tritanopia#00423Eno blue cones; rare, and affects men and women equally; ΔE 1.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.64:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.5Teal · ΔE 27.3Dim grey · ΔE 28Black · ΔE 30.3Dark cyan · ΔE 31.6Slate grey · ΔE 34.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.46, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#40060B
Analogous#06401E, #062840
Triadic#3B0640, #403B06
Split complementary#400628, #401E06
Tetradic#1E0640, #40060B, #284006

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#27EBDA
Lighter +30%#13CCBC
Lighter +20%#0F9D91
Lighter +10%#0A6F66
Darker −10%#021110
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004640
Less saturated −25%#0F3734

Channel breakdown

R6
G64
B59
Red6 (2.4%)
Green64 (25.1%)
Blue59 (23.1%)
Hue174.83°
Saturation (HSL)82.86%
Lightness13.73%
Dominant channelGreen
Hex per channelR 06 · G 40 · B 3B

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Every value on this page was computed from “06403b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.