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Recognised as Colour

#01171A

  • #01171A
  • Cyan
  • Dark
  • Nearest: Black

#01171A is a cyan with RGB values 1, 23, 26 and HSL 187°, 93%, 5%. It is a dark colour, so white text on it reaches 18.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#01171A#01171A
HEX#01171A
RGBrgb(1, 23, 26)
RGB (0–1)0.0039, 0.0902, 0.102
RGB percentages0.4%, 9%, 10.2%
HSLhsl(187.2, 92.6%, 5.3%)
HSV / HSBhsv(187.2, 96.2%, 10.2%)
CMYK96.2%, 11.5%, 0%, 89.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer71,450
CSS custom property--colour: #01171A;

Brightness & contrast

Relative luminance0.00694WCAG 2.x, 0 is black and 1 is white
Perceived brightness19.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.44:1
Contrast with white18.44:1WCAG normal text: AAA
Contrast with black1.14:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#FEE8E5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#14161Ano red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#10131Ano green cones; the most common form, about 1% of men; ΔE 6.9 from the original
Tritanopia#001918no blue cones; rare, and affects men and women equally; ΔE 3.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.44:1WCAG large text: AAA
Contrast with black, large text1.14:1WCAG large text: Fail

Named colours

Black · ΔE 10Dark slate grey · ΔE 25.6Dim grey · ΔE 38.9Slate grey · ΔE 47.1Teal · ΔE 47.8Gray · ΔE 48
Nearest named CSS colourBlack (#000000)ΔE 10.03, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1A0401
Analogous#011A11, #010A1A
Triadic#1A0117, #171A01
Split complementary#1A010A, #1A1101
Tetradic#11011A, #1A0401, #0A1A01

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#09C5DE
Lighter +30%#0799AD
Lighter +20%#056E7C
Lighter +10%#03424B
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00181B
Less saturated −25%#041417

Channel breakdown

R1
G23
B26
Red1 (0.4%)
Green23 (9%)
Blue26 (10.2%)
Hue187.2°
Saturation (HSL)92.59%
Lightness5.29%
Dominant channelBlue
Hex per channelR 01 · G 17 · B 1A

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Every value on this page was computed from “01171a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.