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Recognised as Colour

#1D5366

  • #1D5366
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#1D5366 is a cyan with RGB values 29, 83, 102 and HSL 196°, 56%, 26%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1D5366#1D5366
HEX#1D5366
RGBrgb(29, 83, 102)
RGB (0–1)0.1137, 0.3255, 0.4
RGB percentages11.4%, 32.5%, 40%
HSLhsl(195.6, 55.7%, 25.7%)
HSV / HSBhsv(195.6, 71.6%, 40%)
CMYK71.6%, 18.6%, 0%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,921,894
CSS custom property--colour: #1D5366;

Brightness & contrast

Relative luminance0.07407WCAG 2.x, 0 is black and 1 is white
Perceived brightness74 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.46:1
Contrast with white8.46:1WCAG normal text: AAA
Contrast with black2.48:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#E2AC99

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#485167no red cones; affects about 1% of men; ΔE 13.3 from the original
Deuteranopia#3E4A66no green cones; the most common form, about 1% of men; ΔE 14.1 from the original
Tritanopia#005959no blue cones; rare, and affects men and women equally; ΔE 14.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.46:1WCAG large text: AAA
Contrast with black, large text2.48:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 12.6Slate grey · ΔE 22.7Dim grey · ΔE 22.8Teal · ΔE 24.9Light slate grey · ΔE 25.3Steel blue · ΔE 26.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 12.57, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#66301D
Analogous#1D6655, #1D2E66
Triadic#661D53, #53661D
Split complementary#661D2E, #66551D
Tetradic#551D66, #66301D, #2E661D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#77BFD8
Lighter +30%#4FACCD
Lighter +20%#3494B5
Lighter +10%#28738E
Darker −10%#12333E
Darker −20%#061217
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0D5B76
Less saturated −25%#2D4B56

Channel breakdown

R29
G83
B102
Red29 (11.4%)
Green83 (32.5%)
Blue102 (40%)
Hue195.62°
Saturation (HSL)55.73%
Lightness25.69%
Dominant channelBlue
Hex per channelR 1D · G 53 · B 66

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Every value on this page was computed from “1d5366” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.