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Recognised as Colour

#1B503C

  • #1B503C
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#1B503C is a cyan with RGB values 27, 80, 60 and HSL 157°, 50%, 21%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1B503C#1B503C
HEX#1B503C
RGBrgb(27, 80, 60)
RGB (0–1)0.1059, 0.3137, 0.2353
RGB percentages10.6%, 31.4%, 23.5%
HSLhsl(157.4, 49.5%, 21%)
HSV / HSBhsv(157.4, 66.3%, 31.4%)
CMYK66.3%, 0%, 25%, 68.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,790,012
CSS custom property--colour: #1B503C;

Brightness & contrast

Relative luminance0.06297WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.29:1
Contrast with white9.29:1WCAG normal text: AAA
Contrast with black2.26:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#E4AFC3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4E4A3Bno red cones; affects about 1% of men; ΔE 22.1 from the original
Deuteranopia#47453Dno green cones; the most common form, about 1% of men; ΔE 22.3 from the original
Tritanopia#00504Ano blue cones; rare, and affects men and women equally; ΔE 9.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.29:1WCAG large text: AAA
Contrast with black, large text2.26:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.4Teal · ΔE 24.3Dark olivegreen · ΔE 27.1Dim grey · ΔE 27.9Dark cyan · ΔE 28.1Sea green · ΔE 30.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.41, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#501B2F
Analogous#1B5022, #1B4A50
Triadic#3C1B50, #503C1B
Split complementary#501B4A, #50221B
Tetradic#221B50, #501B2F, #4A501B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6ACDA8
Lighter +30%#44C091
Lighter +20%#359C75
Lighter +10%#287659
Darker −10%#0E2A1F
Darker −20%#010403
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0E5D3F
Less saturated −25%#284339

Channel breakdown

R27
G80
B60
Red27 (10.6%)
Green80 (31.4%)
Blue60 (23.5%)
Hue157.36°
Saturation (HSL)49.53%
Lightness20.98%
Dominant channelGreen
Hex per channelR 1B · G 50 · B 3C

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Every value on this page was computed from “1b503c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.