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Colour

#1C3B42

  • #1C3B42
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#1C3B42 is a cyan with RGB values 28, 59, 66 and HSL 191°, 40%, 18%. It is a dark colour, so white text on it reaches 12:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1C3B42#1C3B42
HEX#1C3B42
RGBrgb(28, 59, 66)
RGB (0–1)0.1098, 0.2314, 0.2588
RGB percentages11%, 23.1%, 25.9%
HSLhsl(191.1, 40.4%, 18.4%)
HSV / HSBhsv(191.1, 57.6%, 25.9%)
CMYK57.6%, 10.6%, 0%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,850,178
CSS custom property--colour: #1C3B42;

Brightness & contrast

Relative luminance0.03768WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.98:1
Contrast with white11.98:1WCAG normal text: AAA
Contrast with black1.75:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#E3C4BD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#363942no red cones; affects about 1% of men; ΔE 10.4 from the original
Deuteranopia#303542no green cones; the most common form, about 1% of men; ΔE 10.6 from the original
Tritanopia#053E3Dno blue cones; rare, and affects men and women equally; ΔE 8.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.98:1WCAG large text: AAA
Contrast with black, large text1.75:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.7Dim grey · ΔE 24.7Black · ΔE 25.9Slate grey · ΔE 30.9Teal · ΔE 32.1Gray · ΔE 33
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.68, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#42231C
Analogous#1C4236, #1C2842
Triadic#421C3B, #3B421C
Split complementary#421C28, #42361C
Tetradic#361C42, #42231C, #28421C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6AB0C0
Lighter +30%#4A9BAD
Lighter +20%#3A7B8A
Lighter +10%#2B5B66
Darker −10%#0D1B1E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#10424E
Less saturated −25%#283436

Channel breakdown

R28
G59
B66
Red28 (11%)
Green59 (23.1%)
Blue66 (25.9%)
Hue191.05°
Saturation (HSL)40.43%
Lightness18.43%
Dominant channelBlue
Hex per channelR 1C · G 3B · B 42

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Every value on this page was computed from “1c3b42” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.