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Recognised as Colour

#1657BF

  • #1657BF
  • Blue
  • Dark
  • Nearest: Royal blue

#1657BF is a blue with RGB values 22, 87, 191 and HSL 217°, 79%, 42%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1657BF#1657BF
HEX#1657BF
RGBrgb(22, 87, 191)
RGB (0–1)0.0863, 0.3412, 0.749
RGB percentages8.6%, 34.1%, 74.9%
HSLhsl(216.9, 79.3%, 41.8%)
HSV / HSBhsv(216.9, 88.5%, 74.9%)
CMYK88.5%, 54.5%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,464,255
CSS custom property--colour: #1657BF;

Brightness & contrast

Relative luminance0.10749WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.67:1
Contrast with white6.67:1WCAG normal text: AA
Contrast with black3.15:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#E9A840

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064C3no red cones; affects about 1% of men; ΔE 9.4 from the original
Deuteranopia#0055BDno green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#007182no blue cones; rare, and affects men and women equally; ΔE 59.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.67:1WCAG large text: AAA
Contrast with black, large text3.15:1WCAG large text: AA

Named colours

Royal blue · ΔE 11.6Slate blue · ΔE 16.6Dark slateblue · ΔE 20.3Dodgerblue · ΔE 23.2Medium purple · ΔE 24.5Medium slateblue · ΔE 24.7
Nearest named CSS colourRoyal blue (#4169E1)ΔE 11.57, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF7E16
Analogous#16ACBF, #2916BF
Triadic#BF1657, #57BF16
Split complementary#BF2916, #ACBF16
Tetradic#BF16AC, #BF7E16, #16BF29

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACC8F5
Lighter +30%#7EAAF0
Lighter +20%#508CEB
Lighter +10%#226DE6
Darker −10%#114291
Darker −20%#0B2D64
Darker −30%#061936
Darker −40%#010408
More saturated +25%#0052D5
Less saturated −25%#315DA4

Channel breakdown

R22
G87
B191
Red22 (8.6%)
Green87 (34.1%)
Blue191 (74.9%)
Hue216.92°
Saturation (HSL)79.34%
Lightness41.76%
Dominant channelBlue
Hex per channelR 16 · G 57 · B BF

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Every value on this page was computed from “1657bf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.