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Recognised as Colour

#1C545B

  • #1C545B
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#1C545B is a cyan with RGB values 28, 84, 91 and HSL 187°, 53%, 23%. 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

#1C545B#1C545B
HEX#1C545B
RGBrgb(28, 84, 91)
RGB (0–1)0.1098, 0.3294, 0.3569
RGB percentages11%, 32.9%, 35.7%
HSLhsl(186.7, 52.9%, 23.3%)
HSV / HSBhsv(186.7, 69.2%, 35.7%)
CMYK69.2%, 7.7%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,856,603
CSS custom property--colour: #1C545B;

Brightness & contrast

Relative luminance0.07343WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.51:1
Contrast with white8.51:1WCAG normal text: AAA
Contrast with black2.47:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#E3ABA4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4D515Bno red cones; affects about 1% of men; ΔE 16.7 from the original
Deuteranopia#434A5Bno green cones; the most common form, about 1% of men; ΔE 17.1 from the original
Tritanopia#005856no blue cones; rare, and affects men and women equally; ΔE 8.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.51:1WCAG large text: AAA
Contrast with black, large text2.47:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 7Teal · ΔE 20.6Dim grey · ΔE 21.7Slate grey · ΔE 24.3Dark cyan · ΔE 24.8Light slate grey · ΔE 26.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 7.02, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B231C
Analogous#1C5B42, #1C355B
Triadic#5B1C54, #545B1C
Split complementary#5B1C35, #5B421C
Tetradic#421C5B, #5B231C, #355B1C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#70C8D3
Lighter +30%#49B9C7
Lighter +20%#349CA9
Lighter +10%#287882
Darker −10%#103034
Darker −20%#040C0D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0D606A
Less saturated −25%#2B484C

Channel breakdown

R28
G84
B91
Red28 (11%)
Green84 (32.9%)
Blue91 (35.7%)
Hue186.67°
Saturation (HSL)52.94%
Lightness23.33%
Dominant channelBlue
Hex per channelR 1C · G 54 · B 5B

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Every value on this page was computed from “1c545b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.