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Recognised as Colour

#017CD3

  • #017CD3
  • Blue
  • Dark
  • Nearest: Cornflower blue

#017CD3 is a blue with RGB values 1, 124, 211 and HSL 205°, 99%, 42%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#017CD3#017CD3
HEX#017CD3
RGBrgb(1, 124, 211)
RGB (0–1)0.0039, 0.4863, 0.8275
RGB percentages0.4%, 48.6%, 82.7%
HSLhsl(204.9, 99.1%, 41.6%)
HSV / HSBhsv(204.9, 99.5%, 82.7%)
CMYK99.5%, 41.2%, 0%, 17.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer97,491
CSS custom property--colour: #017CD3;

Brightness & contrast

Relative luminance0.19125WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.82:1
Contrast with white4.35:1WCAG normal text: Fail
Contrast with black4.82:1WCAG normal text: AA
Greyscale equivalent#686868
Inverted#FE832C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4F82D6no red cones; affects about 1% of men; ΔE 7.5 from the original
Deuteranopia#2C71D1no green cones; the most common form, about 1% of men; ΔE 9.5 from the original
Tritanopia#00919Dno blue cones; rare, and affects men and women equally; ΔE 49 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.35:1WCAG large text: AA
Contrast with black, large text4.82:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.7Dodgerblue · ΔE 15Steel blue · ΔE 22Royal blue · ΔE 25.7Dark slateblue · ΔE 31.5Deep skyblue · ΔE 32.4
Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.68, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D35801
Analogous#01D3C1, #0113D3
Triadic#D3017C, #7CD301
Split complementary#D30113, #D3C101
Tetradic#C101D3, #D35801, #13D301

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A1D8FF
Lighter +30%#6FC3FE
Lighter +20%#3CAEFE
Lighter +10%#0998FE
Darker −10%#015EA0
Darker −20%#01406D
Darker −30%#00233B
Darker −40%#000508
More saturated +25%#007CD4
Less saturated −25%#1C77B8

Channel breakdown

R1
G124
B211
Red1 (0.4%)
Green124 (48.6%)
Blue211 (82.7%)
Hue204.86°
Saturation (HSL)99.06%
Lightness41.57%
Dominant channelBlue
Hex per channelR 01 · G 7C · B D3

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Every value on this page was computed from “017cd3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.