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Colour

#1963B1

  • #1963B1
  • Blue
  • Dark
  • Nearest: Cornflower blue

#1963B1 is a blue with RGB values 25, 99, 177 and HSL 211°, 75%, 40%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#1963B1#1963B1
HEX#1963B1
RGBrgb(25, 99, 177)
RGB (0–1)0.098, 0.3882, 0.6941
RGB percentages9.8%, 38.8%, 69.4%
HSLhsl(210.8, 75.2%, 39.6%)
HSV / HSBhsv(210.8, 85.9%, 69.4%)
CMYK85.9%, 44.1%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,663,921
CSS custom property--colour: #1963B1;

Brightness & contrast

Relative luminance0.12305WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.07:1
Contrast with white6.07:1WCAG normal text: AA
Contrast with black3.46:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#E69C4E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3A6AB4no red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#1B5CAFno green cones; the most common form, about 1% of men; ΔE 5 from the original
Tritanopia#007681no blue cones; rare, and affects men and women equally; ΔE 45.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.07:1WCAG large text: AAA
Contrast with black, large text3.46:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 20.4Steel blue · ΔE 22.1Dark slateblue · ΔE 22.1Dodgerblue · ΔE 23.8Royal blue · ΔE 26.4Slate blue · ΔE 30.4
Nearest named CSS colourCornflower blue (#6495ED)ΔE 20.38, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B16719
Analogous#19AFB1, #1B19B1
Triadic#B11963, #63B119
Split complementary#B11B19, #AFB119
Tetradic#B119AF, #B16719, #19B11B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A4CAF2
Lighter +30%#77B0EC
Lighter +20%#4A96E6
Lighter +10%#1F7CDE
Darker −10%#134A84
Darker −20%#0C3158
Darker −30%#06182B
Darker −40%#000000
More saturated +25%#0062CA
Less saturated −25%#326498

Channel breakdown

R25
G99
B177
Red25 (9.8%)
Green99 (38.8%)
Blue177 (69.4%)
Hue210.79°
Saturation (HSL)75.25%
Lightness39.61%
Dominant channelBlue
Hex per channelR 19 · G 63 · B B1

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Every value on this page was computed from “1963b1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.