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Recognised as Colour

#0100C8

  • #0100C8
  • Blue
  • Dark
  • Nearest: Medium blue

#0100C8 is a blue with RGB values 1, 0, 200 and HSL 240°, 100%, 39%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0100C8#0100C8
HEX#0100C8
RGBrgb(1, 0, 200)
RGB (0–1)0.0039, 0, 0.7843
RGB percentages0.4%, 0%, 78.4%
HSLhsl(240.3, 100%, 39.2%)
HSV / HSBhsv(240.3, 100%, 78.4%)
CMYK99.5%, 100%, 0%, 21.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer65,736
CSS custom property--colour: #0100C8;

Brightness & contrast

Relative luminance0.04177WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.44:1
Contrast with white11.44:1WCAG normal text: AAA
Contrast with black1.84:1WCAG normal text: Fail
Greyscale equivalent#0F0F0F
Inverted#FEFF37

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0044CDno red cones; affects about 1% of men; ΔE 33.6 from the original
Deuteranopia#002EC5no green cones; the most common form, about 1% of men; ΔE 20.9 from the original
Tritanopia#005274no blue cones; rare, and affects men and women equally; ΔE 98.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.44:1WCAG large text: AAA
Contrast with black, large text1.84:1WCAG large text: Fail

Named colours

Medium blue · ΔE 2.2Blue violet · ΔE 23.7Blue · ΔE 23.8Dark violet · ΔE 26.8Dark blue · ΔE 27.9Navy · ΔE 33.1
Nearest named CSS colourMedium blue (#0000CD)ΔE 2.23, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C7C800
Analogous#0063C8, #6500C8
Triadic#C80100, #00C801
Split complementary#C86500, #63C800
Tetradic#C80063, #C7C800, #00C865

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9695FF
Lighter +30%#6362FF
Lighter +20%#302FFF
Lighter +10%#0100FB
Darker −10%#010095
Darker −20%#000062
Darker −30%#00002F
Darker −40%#000000
More saturated +25%#0100C8
Less saturated −25%#1A19AF

Channel breakdown

R1
G0
B200
Red1 (0.4%)
Green0 (0%)
Blue200 (78.4%)
Hue240.3°
Saturation (HSL)100%
Lightness39.22%
Dominant channelBlue
Hex per channelR 01 · G 00 · B C8

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Every value on this page was computed from “0100c8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.