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Colour

#00191D

  • #00191D
  • Cyan
  • Dark
  • Nearest: Black

#00191D is a cyan with RGB values 0, 25, 29 and HSL 188°, 100%, 6%. It is a dark colour, so white text on it reaches 18.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#00191D#00191D
HEX#00191D
RGBrgb(0, 25, 29)
RGB (0–1)0, 0.098, 0.1137
RGB percentages0%, 9.8%, 11.4%
HSLhsl(188.3, 100%, 5.7%)
HSV / HSBhsv(188.3, 100%, 11.4%)
CMYK100%, 13.8%, 0%, 88.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,429
CSS custom property--colour: #00191D;

Brightness & contrast

Relative luminance0.00784WCAG 2.x, 0 is black and 1 is white
Perceived brightness21.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.15:1
Contrast with white18.15:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#141414
Inverted#FFE6E2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#15181Dno red cones; affects about 1% of men; ΔE 7.5 from the original
Deuteranopia#11141Dno green cones; the most common form, about 1% of men; ΔE 8.5 from the original
Tritanopia#001B1Ano blue cones; rare, and affects men and women equally; ΔE 4.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.15:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 11.6Dark slate grey · ΔE 24.7Dim grey · ΔE 38.4Slate grey · ΔE 46.3Teal · ΔE 46.6Gray · ΔE 47.4
Nearest named CSS colourBlack (#000000)ΔE 11.61, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1D0400
Analogous#001D13, #000A1D
Triadic#1D0019, #191D00
Split complementary#1D000A, #1D1300
Tetradic#13001D, #1D0400, #0A1D00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#00C9E9
Lighter +30%#009DB6
Lighter +20%#007183
Lighter +10%#004550
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00191D
Less saturated −25%#041619

Channel breakdown

R0
G25
B29
Red0 (0%)
Green25 (9.8%)
Blue29 (11.4%)
Hue188.28°
Saturation (HSL)100%
Lightness5.69%
Dominant channelBlue
Hex per channelR 00 · G 19 · B 1D

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Every value on this page was computed from “00191d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.