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Recognised as Colour

#1D314E

  • #1D314E
  • Blue
  • Dark
  • Nearest: Dark slate grey

#1D314E is a blue with RGB values 29, 49, 78 and HSL 216°, 46%, 21%. It is a dark colour, so white text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1D314E#1D314E
HEX#1D314E
RGBrgb(29, 49, 78)
RGB (0–1)0.1137, 0.1922, 0.3059
RGB percentages11.4%, 19.2%, 30.6%
HSLhsl(215.5, 45.8%, 21%)
HSV / HSBhsv(215.5, 62.8%, 30.6%)
CMYK62.8%, 37.2%, 0%, 69.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,913,166
CSS custom property--colour: #1D314E;

Brightness & contrast

Relative luminance0.03008WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.11:1
Contrast with white13.11:1WCAG normal text: AAA
Contrast with black1.6:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#E2CEB1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#25334Fno red cones; affects about 1% of men; ΔE 2.1 from the original
Deuteranopia#1F2E4Dno green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#00373Bno blue cones; rare, and affects men and women equally; ΔE 21.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.11:1WCAG large text: AAA
Contrast with black, large text1.6:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 24.3Black · ΔE 28.6Dim grey · ΔE 31.7Dark slateblue · ΔE 34.1Slate grey · ΔE 34.4Steel blue · ΔE 35.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 24.31, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4E3A1D
Analogous#1D4A4E, #211D4E
Triadic#4E1D31, #314E1D
Split complementary#4E211D, #4A4E1D
Tetradic#4E1D4A, #4E3A1D, #1D4E21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6E93C9
Lighter +30%#4977BB
Lighter +20%#396098
Lighter +10%#2B4873
Darker −10%#0F1A29
Darker −20%#010204
Darker −30%#000000
Darker −40%#000000
More saturated +25%#102F5B
Less saturated −25%#2A3341

Channel breakdown

R29
G49
B78
Red29 (11.4%)
Green49 (19.2%)
Blue78 (30.6%)
Hue215.51°
Saturation (HSL)45.79%
Lightness20.98%
Dominant channelBlue
Hex per channelR 1D · G 31 · B 4E

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Every value on this page was computed from “1d314e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.