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Recognised as Colour

#019991

  • #019991
  • Cyan
  • Dark
  • Nearest: Dark cyan

#019991 is a cyan with RGB values 1, 153, 145 and HSL 177°, 99%, 30%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Dark cyan.

Colour values

#019991#019991
HEX#019991
RGBrgb(1, 153, 145)
RGB (0–1)0.0039, 0.6, 0.5686
RGB percentages0.4%, 60%, 56.9%
HSLhsl(176.8, 98.7%, 30.2%)
HSV / HSBhsv(176.8, 99.3%, 60%)
CMYK99.3%, 0%, 5.2%, 40%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer104,849
CSS custom property--colour: #019991;

Brightness & contrast

Relative luminance0.24833WCAG 2.x, 0 is black and 1 is white
Perceived brightness127 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.97:1
Contrast with white3.52:1WCAG normal text: Fail
Contrast with black5.97:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#FE666E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#909091no red cones; affects about 1% of men; ΔE 35.9 from the original
Deuteranopia#7E8392no green cones; the most common form, about 1% of men; ΔE 36.8 from the original
Tritanopia#009D96no blue cones; rare, and affects men and women equally; ΔE 1.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.52:1WCAG large text: AA
Contrast with black, large text5.97:1WCAG large text: AAA

Named colours

Dark cyan · ΔE 7.5Light seagreen · ΔE 9.2Teal · ΔE 11.2Cadetblue · ΔE 16.3Medium turquoise · ΔE 20.3Dark turquoise · ΔE 20.6
Nearest named CSS colourDark cyan (#008B8B)ΔE 7.51, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#990109
Analogous#019945, #015599
Triadic#910199, #999101
Split complementary#990155, #994501
Tetradic#450199, #990109, #559901

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#68FEF6
Lighter +30%#35FEF3
Lighter +20%#03FDF0
Lighter +10%#01CCC1
Darker −10%#016661
Darker −20%#003431
Darker −30%#000101
Darker −40%#000000
More saturated +25%#009A92
Less saturated −25%#148680

Channel breakdown

R1
G153
B145
Red1 (0.4%)
Green153 (60%)
Blue145 (56.9%)
Hue176.84°
Saturation (HSL)98.7%
Lightness30.2%
Dominant channelGreen
Hex per channelR 01 · G 99 · B 91

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Every value on this page was computed from “hex 019991” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.