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Recognised as Colour

#1756BF

  • #1756BF
  • Blue
  • Dark
  • Nearest: Royal blue

#1756BF is a blue with RGB values 23, 86, 191 and HSL 218°, 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

#1756BF#1756BF
HEX#1756BF
RGBrgb(23, 86, 191)
RGB (0–1)0.0902, 0.3373, 0.749
RGB percentages9%, 33.7%, 74.9%
HSLhsl(217.5, 78.5%, 42%)
HSV / HSBhsv(217.5, 88%, 74.9%)
CMYK88%, 55%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,529,535
CSS custom property--colour: #1756BF;

Brightness & contrast

Relative luminance0.10599WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.73:1
Contrast with white6.73:1WCAG normal text: AA
Contrast with black3.12:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#E8A940

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0063C3no red cones; affects about 1% of men; ΔE 9.5 from the original
Deuteranopia#0054BDno green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#007082no 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 text6.73:1WCAG large text: AAA
Contrast with black, large text3.12:1WCAG large text: AA

Named colours

Royal blue · ΔE 11.3Slate blue · ΔE 16.1Dark slateblue · ΔE 20.4Dodgerblue · ΔE 23.7Medium slateblue · ΔE 24.1Medium purple · ΔE 24.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 11.26, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF8017
Analogous#17AABF, #2C17BF
Triadic#BF1756, #56BF17
Split complementary#BF2C17, #AABF17
Tetradic#BF17AA, #BF8017, #17BF2C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ADC8F5
Lighter +30%#7FA9F0
Lighter +20%#528BEA
Lighter +10%#246CE5
Darker −10%#124291
Darker −20%#0C2D64
Darker −30%#071936
Darker −40%#010409
More saturated +25%#0050D6
Less saturated −25%#325DA4

Channel breakdown

R23
G86
B191
Red23 (9%)
Green86 (33.7%)
Blue191 (74.9%)
Hue217.5°
Saturation (HSL)78.5%
Lightness41.96%
Dominant channelBlue
Hex per channelR 17 · G 56 · B BF

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Every value on this page was computed from “1756bf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.