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Recognised as Colour

#1959B4

  • #1959B4
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1959B4 is a blue with RGB values 25, 89, 180 and HSL 215°, 76%, 40%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1959B4#1959B4
HEX#1959B4
RGBrgb(25, 89, 180)
RGB (0–1)0.098, 0.349, 0.7059
RGB percentages9.8%, 34.9%, 70.6%
HSLhsl(215.2, 75.6%, 40.2%)
HSV / HSBhsv(215.2, 86.1%, 70.6%)
CMYK86.1%, 50.6%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,661,364
CSS custom property--colour: #1959B4;

Brightness & contrast

Relative luminance0.10647WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.71:1
Contrast with white6.71:1WCAG normal text: AA
Contrast with black3.13:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#E6A64B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1E63B7no red cones; affects about 1% of men; ΔE 6.8 from the original
Deuteranopia#0055B2no green cones; the most common form, about 1% of men; ΔE 2.3 from the original
Tritanopia#006F7Eno blue cones; rare, and affects men and women equally; ΔE 52.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.71:1WCAG large text: AAA
Contrast with black, large text3.13:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 17.8Royal blue · ΔE 18.2Slate blue · ΔE 22.1Dodgerblue · ΔE 23.2Cornflower blue · ΔE 24.1Medium purple · ΔE 27
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.81, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B47419
Analogous#19A6B4, #2719B4
Triadic#B41959, #59B419
Split complementary#B42719, #A6B419
Tetradic#B419A6, #B47419, #19B427

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A6C6F3
Lighter +30%#7AA9EC
Lighter +20%#4D8CE6
Lighter +10%#206FE0
Darker −10%#134387
Darker −20%#0D2D5A
Darker −30%#06172E
Darker −40%#000001
More saturated +25%#0055CD
Less saturated −25%#335D9A

Channel breakdown

R25
G89
B180
Red25 (9.8%)
Green89 (34.9%)
Blue180 (70.6%)
Hue215.23°
Saturation (HSL)75.61%
Lightness40.2%
Dominant channelBlue
Hex per channelR 19 · G 59 · B B4

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Every value on this page was computed from “1959b4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.