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Recognised as Colour

#156CE8

  • #156CE8
  • Blue
  • Dark
  • Nearest: Royal blue

#156CE8 is a blue with RGB values 21, 108, 232 and HSL 215°, 83%, 50%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#156CE8#156CE8
HEX#156CE8
RGBrgb(21, 108, 232)
RGB (0–1)0.0824, 0.4235, 0.9098
RGB percentages8.2%, 42.4%, 91%
HSLhsl(215.3, 83.4%, 49.6%)
HSV / HSBhsv(215.3, 90.9%, 91%)
CMYK90.9%, 53.4%, 0%, 9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,404,136
CSS custom property--colour: #156CE8;

Brightness & contrast

Relative luminance0.16711WCAG 2.x, 0 is black and 1 is white
Perceived brightness114.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.84:1
Contrast with white4.84:1WCAG normal text: AA
Contrast with black4.34:1WCAG normal text: Fail
Greyscale equivalent#626262
Inverted#EA9317

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#007BECno red cones; affects about 1% of men; ΔE 10.6 from the original
Deuteranopia#0069E6no green cones; the most common form, about 1% of men; ΔE 1.5 from the original
Tritanopia#008B9Fno blue cones; rare, and affects men and women equally; ΔE 68.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.84:1WCAG large text: AAA
Contrast with black, large text4.34:1WCAG large text: AA

Named colours

Royal blue · ΔE 5Slate blue · ΔE 17.4Dodgerblue · ΔE 18.4Medium slateblue · ΔE 18.8Medium purple · ΔE 24.5Cornflower blue · ΔE 28
Nearest named CSS colourRoyal blue (#4169E1)ΔE 4.99, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E89115
Analogous#15D5E8, #2815E8
Triadic#E8156C, #6CE815
Split complementary#E82815, #D5E815
Tetradic#E815D5, #E89115, #15E828

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CEE1FB
Lighter +30%#A0C3F6
Lighter +20%#71A6F2
Lighter +10%#4289EE
Darker −10%#1156B9
Darker −20%#0D408A
Darker −30%#082B5C
Darker −40%#04152D
More saturated +25%#0068FD
Less saturated −25%#3572C8

Channel breakdown

R21
G108
B232
Red21 (8.2%)
Green108 (42.4%)
Blue232 (91%)
Hue215.26°
Saturation (HSL)83.4%
Lightness49.61%
Dominant channelBlue
Hex per channelR 15 · G 6C · B E8

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Every value on this page was computed from “156ce8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.