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Recognised as Colour

#1B6789

  • #1B6789
  • Cyan
  • Dark
  • Nearest: Steel blue

#1B6789 is a cyan with RGB values 27, 103, 137 and HSL 199°, 67%, 32%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#1B6789#1B6789
HEX#1B6789
RGBrgb(27, 103, 137)
RGB (0–1)0.1059, 0.4039, 0.5373
RGB percentages10.6%, 40.4%, 53.7%
HSLhsl(198.5, 67.1%, 32.2%)
HSV / HSBhsv(198.5, 80.3%, 53.7%)
CMYK80.3%, 24.8%, 0%, 46.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,795,977
CSS custom property--colour: #1B6789;

Brightness & contrast

Relative luminance0.1174WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.27:1
Contrast with white6.27:1WCAG normal text: AA
Contrast with black3.35:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#E49876

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#56668Bno red cones; affects about 1% of men; ΔE 14.5 from the original
Deuteranopia#475C88no green cones; the most common form, about 1% of men; ΔE 15.2 from the original
Tritanopia#007072no blue cones; rare, and affects men and women equally; ΔE 22.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.27:1WCAG large text: AAA
Contrast with black, large text3.35:1WCAG large text: AA

Named colours

Steel blue · ΔE 14.9Slate grey · ΔE 20.6Light slate grey · ΔE 22.2Dark slate grey · ΔE 23.6Teal · ΔE 26.1Dim grey · ΔE 27.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 14.93, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#893D1B
Analogous#1B8974, #1B3089
Triadic#891B67, #67891B
Split complementary#891B30, #89741B
Tetradic#741B89, #893D1B, #30891B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#88CAE8
Lighter +30%#5EB7DF
Lighter +20%#33A4D7
Lighter +10%#2387B4
Darker −10%#13475E
Darker −20%#0A2734
Darker −30%#020709
Darker −40%#000000
More saturated +25%#066F9E
Less saturated −25%#2F5F74

Channel breakdown

R27
G103
B137
Red27 (10.6%)
Green103 (40.4%)
Blue137 (53.7%)
Hue198.55°
Saturation (HSL)67.07%
Lightness32.16%
Dominant channelBlue
Hex per channelR 1B · G 67 · B 89

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Every value on this page was computed from “1b6789” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.