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Recognised as Colour

#04191A

  • #04191A
  • Cyan
  • Dark
  • Nearest: Black

#04191A is a cyan with RGB values 4, 25, 26 and HSL 183°, 73%, 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

#04191A#04191A
HEX#04191A
RGBrgb(4, 25, 26)
RGB (0–1)0.0157, 0.098, 0.102
RGB percentages1.6%, 9.8%, 10.2%
HSLhsl(182.7, 73.3%, 5.9%)
HSV / HSBhsv(182.7, 84.6%, 10.2%)
CMYK84.6%, 3.8%, 0%, 89.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer268,570
CSS custom property--colour: #04191A;

Brightness & contrast

Relative luminance0.00796WCAG 2.x, 0 is black and 1 is white
Perceived brightness21.2 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#151515
Inverted#FBE6E5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#17171Ano red cones; affects about 1% of men; ΔE 8 from the original
Deuteranopia#13151Ano green cones; the most common form, about 1% of men; ΔE 7.5 from the original
Tritanopia#001A19no blue cones; rare, and affects men and women equally; ΔE 2.3 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 10.6Dark slate grey · ΔE 24.5Dim grey · ΔE 38Slate grey · ΔE 46.5Teal · ΔE 46.8Gray · ΔE 47
Nearest named CSS colourBlack (#000000)ΔE 10.58, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1A0504
Analogous#041A10, #040E1A
Triadic#1A0419, #191A04
Split complementary#1A040E, #1A1004
Tetradic#10041A, #1A0504, #0E1A04

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1FC3CB
Lighter +30%#18989F
Lighter +20%#126E72
Lighter +10%#0B4346
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001C1E
Less saturated −25%#081616

Channel breakdown

R4
G25
B26
Red4 (1.6%)
Green25 (9.8%)
Blue26 (10.2%)
Hue182.73°
Saturation (HSL)73.33%
Lightness5.88%
Dominant channelBlue
Hex per channelR 04 · G 19 · B 1A

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Every value on this page was computed from “04191a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.