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Colour

#018CF3

  • #018CF3
  • Blue
  • Dark
  • Nearest: Dodgerblue

#018CF3 is a blue with RGB values 1, 140, 243 and HSL 206°, 99%, 48%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#018CF3#018CF3
HEX#018CF3
RGBrgb(1, 140, 243)
RGB (0–1)0.0039, 0.549, 0.9529
RGB percentages0.4%, 54.9%, 95.3%
HSLhsl(205.5, 99.2%, 47.8%)
HSV / HSBhsv(205.5, 99.6%, 95.3%)
CMYK99.6%, 42.4%, 0%, 4.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer101,619
CSS custom property--colour: #018CF3;

Brightness & contrast

Relative luminance0.25234WCAG 2.x, 0 is black and 1 is white
Perceived brightness135 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.05:1
Contrast with white3.47:1WCAG normal text: Fail
Contrast with black6.05:1WCAG normal text: AA
Greyscale equivalent#767676
Inverted#FE730C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5694F7no red cones; affects about 1% of men; ΔE 7.4 from the original
Deuteranopia#2881F1no green cones; the most common form, about 1% of men; ΔE 8.8 from the original
Tritanopia#00A5B4no blue cones; rare, and affects men and women equally; ΔE 56.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.47:1WCAG large text: AA
Contrast with black, large text6.05:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 5Cornflower blue · ΔE 12Royal blue · ΔE 22.2Steel blue · ΔE 30.4Slate blue · ΔE 31.7Medium purple · ΔE 31.7
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 4.99, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F36801
Analogous#01F3E1, #0113F3
Triadic#F3018C, #8CF301
Split complementary#F30113, #F3E101
Tetradic#E101F3, #F36801, #13F301

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C1E5FF
Lighter +30%#8ECFFF
Lighter +20%#5CB9FE
Lighter +10%#29A3FE
Darker −10%#016FC0
Darker −20%#01518D
Darker −30%#00345B
Darker −40%#001728
More saturated +25%#008CF4
Less saturated −25%#2087D4

Channel breakdown

R1
G140
B243
Red1 (0.4%)
Green140 (54.9%)
Blue243 (95.3%)
Hue205.54°
Saturation (HSL)99.18%
Lightness47.84%
Dominant channelBlue
Hex per channelR 01 · G 8C · B F3

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Every value on this page was computed from “018cf3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.