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Colour

#133F82

  • #133F82
  • Blue
  • Dark
  • Nearest: Dark slateblue

#133F82 is a blue with RGB values 19, 63, 130 and HSL 216°, 74%, 29%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#133F82#133F82
HEX#133F82
RGBrgb(19, 63, 130)
RGB (0–1)0.0745, 0.2471, 0.5098
RGB percentages7.5%, 24.7%, 51%
HSLhsl(216.2, 74.5%, 29.2%)
HSV / HSBhsv(216.2, 85.4%, 51%)
CMYK85.4%, 51.5%, 0%, 49%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,261,442
CSS custom property--colour: #133F82;

Brightness & contrast

Relative luminance0.05305WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.19:1
Contrast with white10.19:1WCAG normal text: AAA
Contrast with black2.06:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#ECC07D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#154684no red cones; affects about 1% of men; ΔE 5.1 from the original
Deuteranopia#003C81no green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#004F5Ano blue cones; rare, and affects men and women equally; ΔE 41.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.19:1WCAG large text: AAA
Contrast with black, large text2.06:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.4Midnight blue · ΔE 24.2Steel blue · ΔE 31.2Rebecca purple · ΔE 31.7Slate blue · ΔE 33.8Royal blue · ΔE 34
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.39, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#825613
Analogous#137682, #1F1382
Triadic#82133F, #3F8213
Split complementary#821F13, #768213
Tetradic#821376, #825613, #13821F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#76A4EB
Lighter +30%#4A87E4
Lighter +20%#206ADB
Lighter +10%#1A55AE
Darker −10%#0C2956
Darker −20%#061429
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003B95
Less saturated −25%#26436F

Channel breakdown

R19
G63
B130
Red19 (7.5%)
Green63 (24.7%)
Blue130 (51%)
Hue216.22°
Saturation (HSL)74.5%
Lightness29.22%
Dominant channelBlue
Hex per channelR 13 · G 3F · B 82

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Every value on this page was computed from “133f82” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.