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Colour

#013540

  • #013540
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#013540 is a cyan with RGB values 1, 53, 64 and HSL 190°, 97%, 13%. It is a dark colour, so white text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#013540#013540
HEX#013540
RGBrgb(1, 53, 64)
RGB (0–1)0.0039, 0.2078, 0.251
RGB percentages0.4%, 20.8%, 25.1%
HSLhsl(190.5, 96.9%, 12.7%)
HSV / HSBhsv(190.5, 98.4%, 25.1%)
CMYK98.4%, 17.2%, 0%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer79,168
CSS custom property--colour: #013540;

Brightness & contrast

Relative luminance0.02923WCAG 2.x, 0 is black and 1 is white
Perceived brightness46 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.25:1
Contrast with white13.25:1WCAG normal text: AAA
Contrast with black1.58:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#FECABF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2E3341no red cones; affects about 1% of men; ΔE 13.2 from the original
Deuteranopia#262D40no green cones; the most common form, about 1% of men; ΔE 14 from the original
Tritanopia#003938no 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 text13.25:1WCAG large text: AAA
Contrast with black, large text1.58:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.9Black · ΔE 25.4Dim grey · ΔE 29.4Teal · ΔE 33.6Slate grey · ΔE 34.4Light slate grey · ΔE 37.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.86, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#400C01
Analogous#01402C, #011540
Triadic#400135, #354001
Split complementary#400115, #402C01
Tetradic#2C0140, #400C01, #154001

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#12D3FB
Lighter +30%#03B2D7
Lighter +20%#0388A4
Lighter +10%#025F72
Darker −10%#000B0E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003641
Less saturated −25%#093038

Channel breakdown

R1
G53
B64
Red1 (0.4%)
Green53 (20.8%)
Blue64 (25.1%)
Hue190.48°
Saturation (HSL)96.92%
Lightness12.75%
Dominant channelBlue
Hex per channelR 01 · G 35 · B 40

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Every value on this page was computed from “hex 013540” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.