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Recognised as Colour

#156EA4

  • #156EA4
  • Blue
  • Dark
  • Nearest: Steel blue

#156EA4 is a blue with RGB values 21, 110, 164 and HSL 203°, 77%, 36%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#156EA4#156EA4
HEX#156EA4
RGBrgb(21, 110, 164)
RGB (0–1)0.0824, 0.4314, 0.6431
RGB percentages8.2%, 43.1%, 64.3%
HSLhsl(202.7, 77.3%, 36.3%)
HSV / HSBhsv(202.7, 87.2%, 64.3%)
CMYK87.2%, 32.9%, 0%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,404,580
CSS custom property--colour: #156EA4;

Brightness & contrast

Relative luminance0.13992WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.53:1
Contrast with white5.53:1WCAG normal text: AA
Contrast with black3.8:1WCAG normal text: Fail
Greyscale equivalent#5F5F5F
Inverted#EA915B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#546FA6no red cones; affects about 1% of men; ΔE 11.4 from the original
Deuteranopia#4163A3no green cones; the most common form, about 1% of men; ΔE 13.1 from the original
Tritanopia#007B81no blue cones; rare, and affects men and women equally; ΔE 32.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.53:1WCAG large text: AAA
Contrast with black, large text3.8:1WCAG large text: AA

Named colours

Steel blue · ΔE 9.1Cornflower blue · ΔE 26.3Slate grey · ΔE 26.9Light slate grey · ΔE 27.6Deep skyblue · ΔE 31.8Dark slateblue · ΔE 34.1
Nearest named CSS colourSteel blue (#4682B4)ΔE 9.08, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A44B15
Analogous#15A492, #1527A4
Triadic#A4156E, #6EA415
Split complementary#A41527, #A49215
Tetradic#9215A4, #A44B15, #27A415

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#94CEF1
Lighter +30%#67B9EB
Lighter +20%#39A5E6
Lighter +10%#1B8CD1
Darker −10%#0F5077
Darker −20%#09314A
Darker −30%#04131C
Darker −40%#000000
More saturated +25%#0073B9
Less saturated −25%#2C688D

Channel breakdown

R21
G110
B164
Red21 (8.2%)
Green110 (43.1%)
Blue164 (64.3%)
Hue202.66°
Saturation (HSL)77.3%
Lightness36.27%
Dominant channelBlue
Hex per channelR 15 · G 6E · B A4

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Every value on this page was computed from “156ea4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.