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Recognised as Colour

#1B3AED

  • #1B3AED
  • Blue
  • Dark
  • Nearest: Medium blue

#1B3AED is a blue with RGB values 27, 58, 237 and HSL 231°, 85%, 52%. It is a dark colour, so white text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1B3AED#1B3AED
HEX#1B3AED
RGBrgb(27, 58, 237)
RGB (0–1)0.1059, 0.2275, 0.9294
RGB percentages10.6%, 22.7%, 92.9%
HSLhsl(231.1, 85.4%, 51.8%)
HSV / HSBhsv(231.1, 88.6%, 92.9%)
CMYK88.6%, 75.5%, 0%, 7.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,784,557
CSS custom property--colour: #1B3AED;

Brightness & contrast

Relative luminance0.09374WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.31:1
Contrast with white7.31:1WCAG normal text: AAA
Contrast with black2.87:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#E4C512

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0061F2no red cones; affects about 1% of men; ΔE 26.9 from the original
Deuteranopia#004CEAno green cones; the most common form, about 1% of men; ΔE 14.3 from the original
Tritanopia#007092no blue cones; rare, and affects men and women equally; ΔE 95.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.31:1WCAG large text: AAA
Contrast with black, large text2.87:1WCAG large text: Fail

Named colours

Medium blue · ΔE 16.3Blue violet · ΔE 21.6Dark violet · ΔE 28.7Blue · ΔE 29.4Dark blue · ΔE 31.3Dark orchid · ΔE 32.3
Nearest named CSS colourMedium blue (#0000CD)ΔE 16.26, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EDCE1B
Analogous#1BA3ED, #651BED
Triadic#ED1B3A, #3AED1B
Split complementary#ED651B, #A3ED1B
Tetradic#ED1BA3, #EDCE1B, #1BED65

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D8DDFC
Lighter +30%#A9B5F8
Lighter +20%#7A8CF4
Lighter +10%#4A63F1
Darker −10%#102AC5
Darker −20%#0C2096
Darker −30%#081667
Darker −40%#040C38
More saturated +25%#092DFF
Less saturated −25%#3A50CE

Channel breakdown

R27
G58
B237
Red27 (10.6%)
Green58 (22.7%)
Blue237 (92.9%)
Hue231.14°
Saturation (HSL)85.37%
Lightness51.76%
Dominant channelBlue
Hex per channelR 1B · G 3A · B ED

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Every value on this page was computed from “1b3aed” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.