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Recognised as Colour

#0137AC

  • #0137AC
  • Blue
  • Dark
  • Nearest: Slate blue

#0137AC is a blue with RGB values 1, 55, 172 and HSL 221°, 99%, 34%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#0137AC#0137AC
HEX#0137AC
RGBrgb(1, 55, 172)
RGB (0–1)0.0039, 0.2157, 0.6745
RGB percentages0.4%, 21.6%, 67.5%
HSLhsl(221.1, 98.8%, 33.9%)
HSV / HSBhsv(221.1, 99.4%, 67.5%)
CMYK99.4%, 68%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer79,788
CSS custom property--colour: #0137AC;

Brightness & contrast

Relative luminance0.05717WCAG 2.x, 0 is black and 1 is white
Perceived brightness71.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.8:1
Contrast with white9.8:1WCAG normal text: AAA
Contrast with black2.14:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#FEC853

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004BB0no red cones; affects about 1% of men; ΔE 14.9 from the original
Deuteranopia#003CAAno green cones; the most common form, about 1% of men; ΔE 5.2 from the original
Tritanopia#00576Dno blue cones; rare, and affects men and women equally; ΔE 67 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.8:1WCAG large text: AAA
Contrast with black, large text2.14:1WCAG large text: Fail

Named colours

Slate blue · ΔE 18.6Royal blue · ΔE 20.6Midnight blue · ΔE 20.8Navy · ΔE 20.9Rebecca purple · ΔE 21.2Dark blue · ΔE 21.9
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 18.62, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AC7601
Analogous#018CAC, #2101AC
Triadic#AC0137, #37AC01
Split complementary#AC2101, #8CAC01
Tetradic#AC018C, #AC7601, #01AC21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7BA4FE
Lighter +30%#4881FE
Lighter +20%#155FFE
Lighter +10%#0147DF
Darker −10%#012779
Darker −20%#001747
Darker −30%#000614
Darker −40%#000000
More saturated +25%#0037AD
Less saturated −25%#173F96

Channel breakdown

R1
G55
B172
Red1 (0.4%)
Green55 (21.6%)
Blue172 (67.5%)
Hue221.05°
Saturation (HSL)98.84%
Lightness33.92%
Dominant channelBlue
Hex per channelR 01 · G 37 · B AC

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Every value on this page was computed from “0137ac” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.