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Colour

#1B5EAE

  • #1B5EAE
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1B5EAE is a blue with RGB values 27, 94, 174 and HSL 213°, 73%, 39%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1B5EAE#1B5EAE
HEX#1B5EAE
RGBrgb(27, 94, 174)
RGB (0–1)0.1059, 0.3686, 0.6824
RGB percentages10.6%, 36.9%, 68.2%
HSLhsl(212.7, 73.1%, 39.4%)
HSV / HSBhsv(212.7, 84.5%, 68.2%)
CMYK84.5%, 46%, 0%, 31.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,793,710
CSS custom property--colour: #1B5EAE;

Brightness & contrast

Relative luminance0.11294WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.44:1
Contrast with white6.44:1WCAG normal text: AA
Contrast with black3.26:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#E4A151

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3365B1no red cones; affects about 1% of men; ΔE 4.3 from the original
Deuteranopia#0D58ACno green cones; the most common form, about 1% of men; ΔE 3.8 from the original
Tritanopia#00717Dno blue cones; rare, and affects men and women equally; ΔE 46.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.44:1WCAG large text: AAA
Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 19.7Cornflower blue · ΔE 21.9Dodgerblue · ΔE 24.4Steel blue · ΔE 24.7Royal blue · ΔE 24.8Slate blue · ΔE 28.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.75, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AE6B1B
Analogous#1BA7AE, #221BAE
Triadic#AE1B5E, #5EAE1B
Split complementary#AE221B, #A7AE1B
Tetradic#AE1BA7, #AE6B1B, #1BAE22

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A4C7F1
Lighter +30%#78ACEA
Lighter +20%#4C91E3
Lighter +10%#2276DA
Darker −10%#144682
Darker −20%#0D2E56
Darker −30%#06162A
Darker −40%#000000
More saturated +25%#025CC7
Less saturated −25%#346095

Channel breakdown

R27
G94
B174
Red27 (10.6%)
Green94 (36.9%)
Blue174 (68.2%)
Hue212.65°
Saturation (HSL)73.13%
Lightness39.41%
Dominant channelBlue
Hex per channelR 1B · G 5E · B AE

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Every value on this page was computed from “1b5eae” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.