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Recognised as Colour

#017E9F

  • #017E9F
  • Cyan
  • Dark
  • Nearest: Steel blue

#017E9F is a cyan with RGB values 1, 126, 159 and HSL 193°, 99%, 31%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#017E9F#017E9F
HEX#017E9F
RGBrgb(1, 126, 159)
RGB (0–1)0.0039, 0.4941, 0.6235
RGB percentages0.4%, 49.4%, 62.4%
HSLhsl(192.5, 98.8%, 31.4%)
HSV / HSBhsv(192.5, 99.4%, 62.4%)
CMYK99.4%, 20.8%, 0%, 37.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer97,951
CSS custom property--colour: #017E9F;

Brightness & contrast

Relative luminance0.17431WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.68:1
Contrast with white4.68:1WCAG normal text: AA
Contrast with black4.49:1WCAG normal text: Fail
Greyscale equivalent#666666
Inverted#FE8160

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6C7BA1no red cones; affects about 1% of men; ΔE 21.3 from the original
Deuteranopia#596E9Fno green cones; the most common form, about 1% of men; ΔE 22.9 from the original
Tritanopia#008889no blue cones; rare, and affects men and women equally; ΔE 21 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.68:1WCAG large text: AAA
Contrast with black, large text4.49:1WCAG large text: AA

Named colours

Steel blue · ΔE 14.8Teal · ΔE 21.1Slate grey · ΔE 21.7Dark cyan · ΔE 22Light slate grey · ΔE 22Cadetblue · ΔE 22.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 14.82, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9F2201
Analogous#019F71, #012F9F
Triadic#9F017E, #7E9F01
Split complementary#9F012F, #9F7101
Tetradic#71019F, #9F2201, #2F9F01

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6EE0FE
Lighter +30%#3BD5FE
Lighter +20%#09CAFD
Lighter +10%#01A6D2
Darker −10%#01566C
Darker −20%#002E3A
Darker −30%#000607
Darker −40%#000000
More saturated +25%#007FA0
Less saturated −25%#15728B

Channel breakdown

R1
G126
B159
Red1 (0.4%)
Green126 (49.4%)
Blue159 (62.4%)
Hue192.53°
Saturation (HSL)98.75%
Lightness31.37%
Dominant channelBlue
Hex per channelR 01 · G 7E · B 9F

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Every value on this page was computed from “017e9f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.