Nerdulator> put something in

Recognised as Colour

#151B18

  • #151B18
  • Cyan
  • Dark
  • Nearest: Black

#151B18 is a cyan with RGB values 21, 27, 24 and HSL 150°, 13%, 9%. It is a dark colour, so white text on it reaches 17.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#151B18#151B18
HEX#151B18
RGBrgb(21, 27, 24)
RGB (0–1)0.0824, 0.1059, 0.0941
RGB percentages8.2%, 10.6%, 9.4%
HSLhsl(150, 12.5%, 9.4%)
HSV / HSBhsv(150, 22.2%, 10.6%)
CMYK22.2%, 0%, 11.1%, 89.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,383,192
CSS custom property--colour: #151B18;

Brightness & contrast

Relative luminance0.01009WCAG 2.x, 0 is black and 1 is white
Perceived brightness25 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.47:1
Contrast with white17.47:1WCAG normal text: AAA
Contrast with black1.2:1WCAG normal text: Fail
Greyscale equivalent#1A1A1A
Inverted#EAE4E7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1B1A18no red cones; affects about 1% of men; ΔE 3.6 from the original
Deuteranopia#1A1918no green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#141B1Ano blue cones; rare, and affects men and women equally; ΔE 1.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.47:1WCAG large text: AAA
Contrast with black, large text1.2:1WCAG large text: Fail

Named colours

Black · ΔE 9.8Dark slate grey · ΔE 24.1Dim grey · ΔE 35.5Gray · ΔE 44.7Slate grey · ΔE 45.3Dark olivegreen · ΔE 46.9
Nearest named CSS colourBlack (#000000)ΔE 9.83, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B1518
Analogous#151B15, #151B1B
Triadic#18151B, #1B1815
Split complementary#1B151B, #1B1515
Tetradic#15151B, #1B1518, #1B1B15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6E8E7E
Lighter +30%#587165
Lighter +20%#42544B
Lighter +10%#2B3832
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0F2118
Less saturated −25%#181818

Channel breakdown

R21
G27
B24
Red21 (8.2%)
Green27 (10.6%)
Blue24 (9.4%)
Hue150°
Saturation (HSL)12.5%
Lightness9.41%
Dominant channelGreen
Hex per channelR 15 · G 1B · B 18

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “151b18” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.