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Recognised as Colour

#031518

  • #031518
  • Cyan
  • Dark
  • Nearest: Black

#031518 is a cyan with RGB values 3, 21, 24 and HSL 189°, 78%, 5%. It is a dark colour, so white text on it reaches 18.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#031518#031518
HEX#031518
RGBrgb(3, 21, 24)
RGB (0–1)0.0118, 0.0824, 0.0941
RGB percentages1.2%, 8.2%, 9.4%
HSLhsl(188.6, 77.8%, 5.3%)
HSV / HSBhsv(188.6, 87.5%, 9.4%)
CMYK87.5%, 12.5%, 0%, 90.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer202,008
CSS custom property--colour: #031518;

Brightness & contrast

Relative luminance0.00622WCAG 2.x, 0 is black and 1 is white
Perceived brightness18.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.68:1
Contrast with white18.68:1WCAG normal text: AAA
Contrast with black1.12:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#FCEAE7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#121418no red cones; affects about 1% of men; ΔE 5.2 from the original
Deuteranopia#0F1118no green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#001616no blue cones; rare, and affects men and women equally; ΔE 2.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.68:1WCAG large text: AAA
Contrast with black, large text1.12:1WCAG large text: Fail

Named colours

Black · ΔE 8.5Dark slate grey · ΔE 26.5Dim grey · ΔE 39.3Slate grey · ΔE 47.8Gray · ΔE 48.4Teal · ΔE 49.1
Nearest named CSS colourBlack (#000000)ΔE 8.49, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#180603
Analogous#031810, #030B18
Triadic#180315, #151803
Split complementary#18030B, #181003
Tetradic#100318, #180603, #0B1803

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1AB4CD
Lighter +30%#148CA0
Lighter +20%#0E6473
Lighter +10%#093D45
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00171B
Less saturated −25%#061315

Channel breakdown

R3
G21
B24
Red3 (1.2%)
Green21 (8.2%)
Blue24 (9.4%)
Hue188.57°
Saturation (HSL)77.78%
Lightness5.29%
Dominant channelBlue
Hex per channelR 03 · G 15 · B 18

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Every value on this page was computed from “hex 031518” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.