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Recognised as Colour

#051BCF

  • #051BCF
  • Blue
  • Dark
  • Nearest: Medium blue

#051BCF is a blue with RGB values 5, 27, 207 and HSL 233°, 95%, 42%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#051BCF#051BCF
HEX#051BCF
RGBrgb(5, 27, 207)
RGB (0–1)0.0196, 0.1059, 0.8118
RGB percentages2%, 10.6%, 81.2%
HSLhsl(233.5, 95.3%, 41.6%)
HSV / HSBhsv(233.5, 97.6%, 81.2%)
CMYK97.6%, 87%, 0%, 18.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer334,799
CSS custom property--colour: #051BCF;

Brightness & contrast

Relative luminance0.05321WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.17:1
Contrast with white10.17:1WCAG normal text: AAA
Contrast with black2.06:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#FAE430

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004BD4no red cones; affects about 1% of men; ΔE 29.7 from the original
Deuteranopia#0036CCno green cones; the most common form, about 1% of men; ΔE 17.4 from the original
Tritanopia#005A7Bno blue cones; rare, and affects men and women equally; ΔE 95.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.17:1WCAG large text: AAA
Contrast with black, large text2.06:1WCAG large text: Fail

Named colours

Medium blue · ΔE 7.7Blue violet · ΔE 21.8Dark blue · ΔE 25.6Dark violet · ΔE 26.5Blue · ΔE 27.3Navy · ΔE 30.7
Nearest named CSS colourMedium blue (#0000CD)ΔE 7.67, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CFB905
Analogous#0580CF, #5405CF
Triadic#CF051B, #1BCF05
Split complementary#CF5405, #80CF05
Tetradic#CF0580, #CFB905, #05CF54

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A3ADFD
Lighter +30%#7180FC
Lighter +20%#4054FA
Lighter +10%#0E27F9
Darker −10%#04159D
Darker −20%#030E6B
Darker −30%#01083A
Darker −40%#000108
More saturated +25%#0017D4
Less saturated −25%#2030B4

Channel breakdown

R5
G27
B207
Red5 (2%)
Green27 (10.6%)
Blue207 (81.2%)
Hue233.47°
Saturation (HSL)95.28%
Lightness41.57%
Dominant channelBlue
Hex per channelR 05 · G 1B · B CF

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Every value on this page was computed from “051bcf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.