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Recognised as Colour

#1631D5

  • #1631D5
  • Blue
  • Dark
  • Nearest: Medium blue

#1631D5 is a blue with RGB values 22, 49, 213 and HSL 232°, 81%, 46%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1631D5#1631D5
HEX#1631D5
RGBrgb(22, 49, 213)
RGB (0–1)0.0863, 0.1922, 0.8353
RGB percentages8.6%, 19.2%, 83.5%
HSLhsl(231.5, 81.3%, 46.1%)
HSV / HSBhsv(231.5, 89.7%, 83.5%)
CMYK89.7%, 77%, 0%, 16.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,454,549
CSS custom property--colour: #1631D5;

Brightness & contrast

Relative luminance0.07171WCAG 2.x, 0 is black and 1 is white
Perceived brightness82 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.63:1
Contrast with white8.63:1WCAG normal text: AAA
Contrast with black2.43:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#E9CE2A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0055DAno red cones; affects about 1% of men; ΔE 24.9 from the original
Deuteranopia#0042D2no green cones; the most common form, about 1% of men; ΔE 13.6 from the original
Tritanopia#006482no blue cones; rare, and affects men and women equally; ΔE 89.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.63:1WCAG large text: AAA
Contrast with black, large text2.43:1WCAG large text: Fail

Named colours

Medium blue · ΔE 17.7Blue violet · ΔE 21.9Dark blue · ΔE 23.4Navy · ΔE 27.8Dark violet · ΔE 28.3Dark orchid · ΔE 29.3
Nearest named CSS colourMedium blue (#0000CD)ΔE 17.75, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D5BA16
Analogous#1691D5, #5A16D5
Triadic#D51631, #31D516
Split complementary#D55A16, #91D516
Tetradic#D51691, #D5BA16, #16D55A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BFC7F8
Lighter +30%#909EF4
Lighter +20%#6276EF
Lighter +10%#344EEA
Darker −10%#1126A7
Darker −20%#0C1C79
Darker −30%#08114A
Darker −40%#03061C
More saturated +25%#0021EB
Less saturated −25%#3346B8

Channel breakdown

R22
G49
B213
Red22 (8.6%)
Green49 (19.2%)
Blue213 (83.5%)
Hue231.52°
Saturation (HSL)81.28%
Lightness46.08%
Dominant channelBlue
Hex per channelR 16 · G 31 · B D5

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Every value on this page was computed from “1631d5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.