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Recognised as Colour

#1D5D64

  • #1D5D64
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#1D5D64 is a cyan with RGB values 29, 93, 100 and HSL 186°, 55%, 25%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1D5D64#1D5D64
HEX#1D5D64
RGBrgb(29, 93, 100)
RGB (0–1)0.1137, 0.3647, 0.3922
RGB percentages11.4%, 36.5%, 39.2%
HSLhsl(185.9, 55%, 25.3%)
HSV / HSBhsv(185.9, 71%, 39.2%)
CMYK71%, 7%, 0%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,924,452
CSS custom property--colour: #1D5D64;

Brightness & contrast

Relative luminance0.0901WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.49:1
Contrast with white7.49:1WCAG normal text: AAA
Contrast with black2.8:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#E2A29B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#555964no red cones; affects about 1% of men; ΔE 18.7 from the original
Deuteranopia#4B5164no green cones; the most common form, about 1% of men; ΔE 19.9 from the original
Tritanopia#00615Fno blue cones; rare, and affects men and women equally; ΔE 8.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.49:1WCAG large text: AAA
Contrast with black, large text2.8:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.6Teal · ΔE 16.8Dark cyan · ΔE 20.9Dim grey · ΔE 21.7Slate grey · ΔE 22.7Light slate grey · ΔE 25
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.65, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#64241D
Analogous#1D6447, #1D3A64
Triadic#641D5D, #5D641D
Split complementary#641D3A, #64481D
Tetradic#471D64, #64241D, #39641D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#76CED7
Lighter +30%#4EBFCC
Lighter +20%#34A7B3
Lighter +10%#28828C
Darker −10%#12383C
Darker −20%#061315
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0D6A74
Less saturated −25%#2D5054

Channel breakdown

R29
G93
B100
Red29 (11.4%)
Green93 (36.5%)
Blue100 (39.2%)
Hue185.92°
Saturation (HSL)55.04%
Lightness25.29%
Dominant channelBlue
Hex per channelR 1D · G 5D · B 64

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Every value on this page was computed from “1d5d64” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.