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Colour

#00191F

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

#00191F is a cyan with RGB values 0, 25, 31 and HSL 192°, 100%, 6%. It is a dark colour, so white text on it reaches 18.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#00191F#00191F
HEX#00191F
RGBrgb(0, 25, 31)
RGB (0–1)0, 0.098, 0.1216
RGB percentages0%, 9.8%, 12.2%
HSLhsl(191.6, 100%, 6.1%)
HSV / HSBhsv(191.6, 100%, 12.2%)
CMYK100%, 19.4%, 0%, 87.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,431
CSS custom property--colour: #00191F;

Brightness & contrast

Relative luminance0.00794WCAG 2.x, 0 is black and 1 is white
Perceived brightness21.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.12:1
Contrast with white18.12:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#141414
Inverted#FFE6E0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#15181Fno red cones; affects about 1% of men; ΔE 7.5 from the original
Deuteranopia#10141Fno green cones; the most common form, about 1% of men; ΔE 8.2 from the original
Tritanopia#001B1Bno blue cones; rare, and affects men and women equally; ΔE 4.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.12:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 12Dark slate grey · ΔE 24.9Dim grey · ΔE 38.5Slate grey · ΔE 46Teal · ΔE 46.8Gray · ΔE 47.4
Nearest named CSS colourBlack (#000000)ΔE 12.03, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1F0600
Analogous#001F16, #00091F
Triadic#1F0019, #191F00
Split complementary#1F000A, #1F1600
Tetradic#15001F, #1F0600, #091F00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#00BEEB
Lighter +30%#0094B8
Lighter +20%#006B85
Lighter +10%#004252
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00191F
Less saturated −25%#04171B

Channel breakdown

R0
G25
B31
Red0 (0%)
Green25 (9.8%)
Blue31 (12.2%)
Hue191.61°
Saturation (HSL)100%
Lightness6.08%
Dominant channelBlue
Hex per channelR 00 · G 19 · B 1F

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