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Recognised as Colour

#001BEF

  • #001BEF
  • Blue
  • Dark
  • Nearest: Medium blue

#001BEF is a blue with RGB values 0, 27, 239 and HSL 233°, 100%, 47%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#001BEF#001BEF
HEX#001BEF
RGBrgb(0, 27, 239)
RGB (0–1)0, 0.1059, 0.9373
RGB percentages0%, 10.6%, 93.7%
HSLhsl(233.2, 100%, 46.9%)
HSV / HSBhsv(233.2, 100%, 93.7%)
CMYK100%, 88.7%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer7,151
CSS custom property--colour: #001BEF;

Brightness & contrast

Relative luminance0.07016WCAG 2.x, 0 is black and 1 is white
Perceived brightness83.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.74:1
Contrast with white8.74:1WCAG normal text: AAA
Contrast with black2.4:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#FFE410

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0057F4no red cones; affects about 1% of men; ΔE 35.2 from the original
Deuteranopia#003EECno green cones; the most common form, about 1% of men; ΔE 20.4 from the original
Tritanopia#00688Eno blue cones; rare, and affects men and women equally; ΔE 108.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.74:1WCAG large text: AAA
Contrast with black, large text2.4:1WCAG large text: Fail

Named colours

Medium blue · ΔE 10.9Blue · ΔE 12.6Blue violet · ΔE 26.9Dark violet · ΔE 31Dark blue · ΔE 40.2Dark orchid · ΔE 41.4
Nearest named CSS colourMedium blue (#0000CD)ΔE 10.91, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EFD400
Analogous#0092EF, #5D00EF
Triadic#EF001B, #1BEF00
Split complementary#EF5D00, #92EF00
Tetradic#EF0092, #EFD400, #00EF5C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCC4FF
Lighter +30%#8996FF
Lighter +20%#5669FF
Lighter +10%#233CFF
Darker −10%#0015BC
Darker −20%#000F89
Darker −30%#000A56
Darker −40%#000423
More saturated +25%#001BEF
Less saturated −25%#1E32D1

Channel breakdown

R0
G27
B239
Red0 (0%)
Green27 (10.6%)
Blue239 (93.7%)
Hue233.22°
Saturation (HSL)100%
Lightness46.86%
Dominant channelBlue
Hex per channelR 00 · G 1B · B EF

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Every value on this page was computed from “001bef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.