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Recognised as Colour

#001518

  • #001518
  • Cyan
  • Dark
  • Nearest: Black

#001518 is a cyan with RGB values 0, 21, 24 and HSL 188°, 100%, 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

#001518#001518
HEX#001518
RGBrgb(0, 21, 24)
RGB (0–1)0, 0.0824, 0.0941
RGB percentages0%, 8.2%, 9.4%
HSLhsl(187.5, 100%, 4.7%)
HSV / HSBhsv(187.5, 100%, 9.4%)
CMYK100%, 12.5%, 0%, 90.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,400
CSS custom property--colour: #001518;

Brightness & contrast

Relative luminance0.00602WCAG 2.x, 0 is black and 1 is white
Perceived brightness18 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.74:1
Contrast with white18.74:1WCAG normal text: AAA
Contrast with black1.12:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#FFEAE7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#121418no red cones; affects about 1% of men; ΔE 6.1 from the original
Deuteranopia#0E1118no green cones; the most common form, about 1% of men; ΔE 6.3 from the original
Tritanopia#001716no blue cones; rare, and affects men and women equally; ΔE 3.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.74:1WCAG large text: AAA
Contrast with black, large text1.12:1WCAG large text: Fail

Named colours

Black · ΔE 9Dark slate grey · ΔE 26.5Dim grey · ΔE 39.6Slate grey · ΔE 47.9Gray · ΔE 48.7Teal · ΔE 48.8
Nearest named CSS colourBlack (#000000)ΔE 8.99, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#180300
Analogous#00180F, #000918
Triadic#180015, #151800
Split complementary#180009, #180F00
Tetradic#0F0018, #180300, #091800

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#00C7E4
Lighter +30%#009BB1
Lighter +20%#006E7E
Lighter +10%#00424B
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001518
Less saturated −25%#031315

Channel breakdown

R0
G21
B24
Red0 (0%)
Green21 (8.2%)
Blue24 (9.4%)
Hue187.5°
Saturation (HSL)100%
Lightness4.71%
Dominant channelBlue
Hex per channelR 00 · G 15 · B 18

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Every value on this page was computed from “hex 001518” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.