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Recognised as Colour

#156A97

  • #156A97
  • Blue
  • Dark
  • Nearest: Steel blue

#156A97 is a blue with RGB values 21, 106, 151 and HSL 201°, 76%, 34%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#156A97#156A97
HEX#156A97
RGBrgb(21, 106, 151)
RGB (0–1)0.0824, 0.4157, 0.5922
RGB percentages8.2%, 41.6%, 59.2%
HSLhsl(200.8, 75.6%, 33.7%)
HSV / HSBhsv(200.8, 86.1%, 59.2%)
CMYK86.1%, 29.8%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,403,543
CSS custom property--colour: #156A97;

Brightness & contrast

Relative luminance0.12702WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.93:1
Contrast with white5.93:1WCAG normal text: AA
Contrast with black3.54:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#EA9568

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#546A99no red cones; affects about 1% of men; ΔE 12.9 from the original
Deuteranopia#435F96no green cones; the most common form, about 1% of men; ΔE 14.1 from the original
Tritanopia#00757Ano blue cones; rare, and affects men and women equally; ΔE 27.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.93:1WCAG large text: AAA
Contrast with black, large text3.54:1WCAG large text: AA

Named colours

Steel blue · ΔE 10.7Slate grey · ΔE 23.8Light slate grey · ΔE 24.8Dark slate grey · ΔE 30Cornflower blue · ΔE 31.4Teal · ΔE 31.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 10.7, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#974215
Analogous#159783, #152997
Triadic#97156A, #6A9715
Split complementary#971529, #978315
Tetradic#831597, #974215, #299715

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#89CCEF
Lighter +30%#5DB8E8
Lighter +20%#30A4E2
Lighter +10%#1B89C4
Darker −10%#0F4B6A
Darker −20%#092B3D
Darker −30%#020C11
Darker −40%#000000
More saturated +25%#0070AC
Less saturated −25%#2B6382

Channel breakdown

R21
G106
B151
Red21 (8.2%)
Green106 (41.6%)
Blue151 (59.2%)
Hue200.77°
Saturation (HSL)75.58%
Lightness33.73%
Dominant channelBlue
Hex per channelR 15 · G 6A · B 97

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Every value on this page was computed from “156a97” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.