Nerdulator> put something in

Recognised as Colour

#5171CA

  • #5171CA
  • Blue
  • Dark
  • Nearest: Cornflower blue

#5171CA is a blue with RGB values 81, 113, 202 and HSL 224°, 53%, 55%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#5171CA#5171CA
HEX#5171CA
RGBrgb(81, 113, 202)
RGB (0–1)0.3176, 0.4431, 0.7922
RGB percentages31.8%, 44.3%, 79.2%
HSLhsl(224.1, 53.3%, 55.5%)
HSV / HSBhsv(224.1, 59.9%, 79.2%)
CMYK59.9%, 44.1%, 0%, 20.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,337,546
CSS custom property--colour: #5171CA;

Brightness & contrast

Relative luminance0.17824WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.6:1
Contrast with white4.6:1WCAG normal text: AA
Contrast with black4.56:1WCAG normal text: AA
Greyscale equivalent#717171
Inverted#AE8E35

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#487BCDno red cones; affects about 1% of men; ΔE 7.6 from the original
Deuteranopia#3770C8no green cones; the most common form, about 1% of men; ΔE 4.9 from the original
Tritanopia#008594no blue cones; rare, and affects men and women equally; ΔE 52.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.6:1WCAG large text: AAA
Contrast with black, large text4.56:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 14.2Dodgerblue · ΔE 17.9Royal blue · ΔE 18.7Medium purple · ΔE 21.8Slate blue · ΔE 22.1Dark slateblue · ΔE 22.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 14.21, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CAAA51
Analogous#51ADCA, #6E51CA
Triadic#CA5171, #71CA51
Split complementary#CA6E51, #ADCA51
Tetradic#CA51AE, #CAAA51, #51CA6E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDF1FA
Lighter +30%#C6D1EE
Lighter +20%#9FB1E2
Lighter +10%#7891D6
Darker −10%#3657B2
Darker −20%#2A448B
Darker −30%#1E3164
Darker −40%#121E3D
More saturated +25%#3564E6
Less saturated −25%#6D7EAE

Channel breakdown

R81
G113
B202
Red81 (31.8%)
Green113 (44.3%)
Blue202 (79.2%)
Hue224.13°
Saturation (HSL)53.3%
Lightness55.49%
Dominant channelBlue
Hex per channelR 51 · G 71 · B CA

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “5171ca” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.