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Colour

#0156B2

  • #0156B2
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0156B2 is a blue with RGB values 1, 86, 178 and HSL 211°, 99%, 35%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0156B2#0156B2
HEX#0156B2
RGBrgb(1, 86, 178)
RGB (0–1)0.0039, 0.3373, 0.698
RGB percentages0.4%, 33.7%, 69.8%
HSLhsl(211.2, 98.9%, 35.1%)
HSV / HSBhsv(211.2, 99.4%, 69.8%)
CMYK99.4%, 51.7%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer87,730
CSS custom property--colour: #0156B2;

Brightness & contrast

Relative luminance0.09876WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.06:1
Contrast with white7.06:1WCAG normal text: AAA
Contrast with black2.98:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#FEA94D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1460B5no red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#0052B0no green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#006D7Bno blue cones; rare, and affects men and women equally; ΔE 53.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.06:1WCAG large text: AAA
Contrast with black, large text2.98:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18Royal blue · ΔE 18.3Slate blue · ΔE 22.4Dodgerblue · ΔE 24Cornflower blue · ΔE 25.6Midnight blue · ΔE 27.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.97, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B25D01
Analogous#01AEB2, #0501B2
Triadic#B20156, #56B201
Split complementary#B20501, #AEB201
Tetradic#B201AE, #B25D01, #01B205

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#81BDFE
Lighter +30%#4EA3FE
Lighter +20%#1B88FE
Lighter +10%#016FE5
Darker −10%#013D7F
Darker −20%#00254D
Darker −30%#000C1A
Darker −40%#000000
More saturated +25%#0056B3
Less saturated −25%#17579C

Channel breakdown

R1
G86
B178
Red1 (0.4%)
Green86 (33.7%)
Blue178 (69.8%)
Hue211.19°
Saturation (HSL)98.88%
Lightness35.1%
Dominant channelBlue
Hex per channelR 01 · G 56 · B B2

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Every value on this page was computed from “0156b2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.