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Colour

#1955B3

  • #1955B3
  • Blue
  • Dark
  • Nearest: Royal blue

#1955B3 is a blue with RGB values 25, 85, 179 and HSL 217°, 75%, 40%. It is a dark colour, so white text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Royal blue.

Colour values

#1955B3#1955B3
HEX#1955B3
RGBrgb(25, 85, 179)
RGB (0–1)0.098, 0.3333, 0.702
RGB percentages9.8%, 33.3%, 70.2%
HSLhsl(216.6, 75.5%, 40%)
HSV / HSBhsv(216.6, 86%, 70.2%)
CMYK86%, 52.5%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,660,339
CSS custom property--colour: #1955B3;

Brightness & contrast

Relative luminance0.09958WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.02:1
Contrast with white7.02:1WCAG normal text: AAA
Contrast with black2.99:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#E6AA4C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0F60B6no red cones; affects about 1% of men; ΔE 8.2 from the original
Deuteranopia#0052B1no green cones; the most common form, about 1% of men; ΔE 1.8 from the original
Tritanopia#006C7Cno blue cones; rare, and affects men and women equally; ΔE 54.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.02:1WCAG large text: AAA
Contrast with black, large text2.99:1WCAG large text: Fail

Named colours

Royal blue · ΔE 16.7Dark slateblue · ΔE 17Slate blue · ΔE 20.1Dodgerblue · ΔE 24.4Cornflower blue · ΔE 26.2Medium purple · ΔE 26.3
Nearest named CSS colourRoyal blue (#4169E1)ΔE 16.74, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B37719
Analogous#19A2B3, #2A19B3
Triadic#B31955, #55B319
Split complementary#B32A19, #A2B319
Tetradic#B319A2, #B37719, #19B32A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A6C3F3
Lighter +30%#79A6EC
Lighter +20%#4C88E6
Lighter +10%#1F6AE0
Darker −10%#134086
Darker −20%#0C2A5A
Darker −30%#06152D
Darker −40%#000000
More saturated +25%#004FCC
Less saturated −25%#335B9A

Channel breakdown

R25
G85
B179
Red25 (9.8%)
Green85 (33.3%)
Blue179 (70.2%)
Hue216.62°
Saturation (HSL)75.49%
Lightness40%
Dominant channelBlue
Hex per channelR 19 · G 55 · B B3

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Every value on this page was computed from “1955b3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.