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Colour

#1F74DC

  • #1F74DC
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1F74DC is a blue with RGB values 31, 116, 220 and HSL 213°, 75%, 49%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1F74DC#1F74DC
HEX#1F74DC
RGBrgb(31, 116, 220)
RGB (0–1)0.1216, 0.4549, 0.8627
RGB percentages12.2%, 45.5%, 86.3%
HSLhsl(213, 75.3%, 49.2%)
HSV / HSBhsv(213, 85.9%, 86.3%)
CMYK85.9%, 47.3%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,061,532
CSS custom property--colour: #1F74DC;

Brightness & contrast

Relative luminance0.17949WCAG 2.x, 0 is black and 1 is white
Perceived brightness117.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.59:1
Contrast with white4.58:1WCAG normal text: AA
Contrast with black4.59:1WCAG normal text: AA
Greyscale equivalent#696969
Inverted#E08B23

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#387EE0no red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#006EDAno green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#008D9Dno blue cones; rare, and affects men and women equally; ΔE 58.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.58:1WCAG large text: AAA
Contrast with black, large text4.59:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 11.3Royal blue · ΔE 13.5Cornflower blue · ΔE 17Slate blue · ΔE 22.5Medium purple · ΔE 25.4Medium slateblue · ΔE 27.8
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 11.28, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DC871F
Analogous#1FD3DC, #281FDC
Triadic#DC1F74, #74DC1F
Split complementary#DC291F, #D3DC1F
Tetradic#DC1FD3, #DC871F, #1FDC29

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFE1F8
Lighter +30%#A2C6F2
Lighter +20%#75ABEC
Lighter +10%#498FE5
Darker −10%#195CAF
Darker −20%#124583
Darker −30%#0C2D56
Darker −40%#061629
More saturated +25%#0071FB
Less saturated −25%#3E77BD

Channel breakdown

R31
G116
B220
Red31 (12.2%)
Green116 (45.5%)
Blue220 (86.3%)
Hue213.02°
Saturation (HSL)75.3%
Lightness49.22%
Dominant channelBlue
Hex per channelR 1F · G 74 · B DC

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Every value on this page was computed from “1f74dc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.