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Recognised as Colour

#1D2937

  • #1D2937
  • Blue
  • Dark
  • Nearest: Black

#1D2937 is a blue with RGB values 29, 41, 55 and HSL 212°, 31%, 16%. It is a dark colour, so white text on it reaches 14.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1D2937#1D2937
HEX#1D2937
RGBrgb(29, 41, 55)
RGB (0–1)0.1137, 0.1608, 0.2157
RGB percentages11.4%, 16.1%, 21.6%
HSLhsl(212.3, 31%, 16.5%)
HSV / HSBhsv(212.3, 47.3%, 21.6%)
CMYK47.3%, 25.5%, 0%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,911,095
CSS custom property--colour: #1D2937;

Brightness & contrast

Relative luminance0.02123WCAG 2.x, 0 is black and 1 is white
Perceived brightness39.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.74:1
Contrast with white14.74:1WCAG normal text: AAA
Contrast with black1.42:1WCAG normal text: Fail
Greyscale equivalent#272727
Inverted#E2D6C8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#242938no red cones; affects about 1% of men; ΔE 2.9 from the original
Deuteranopia#212737no green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#142C2Eno blue cones; rare, and affects men and women equally; ΔE 10.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.74:1WCAG large text: AAA
Contrast with black, large text1.42:1WCAG large text: Fail

Named colours

Black · ΔE 19.3Dark slate grey · ΔE 20Dim grey · ΔE 30.2Slate grey · ΔE 36.7Gray · ΔE 39Light slate grey · ΔE 39.8
Nearest named CSS colourBlack (#000000)ΔE 19.33, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#372B1D
Analogous#1D3637, #1E1D37
Triadic#371D29, #29371D
Split complementary#371E1D, #36371D
Tetradic#371D36, #372B1D, #1D371E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6E8DB2
Lighter +30%#52749B
Lighter +20%#405B7A
Lighter +10%#2F4258
Darker −10%#0B1016
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#122842
Less saturated −25%#272A2D

Channel breakdown

R29
G41
B55
Red29 (11.4%)
Green41 (16.1%)
Blue55 (21.6%)
Hue212.31°
Saturation (HSL)30.95%
Lightness16.47%
Dominant channelBlue
Hex per channelR 1D · G 29 · B 37

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Every value on this page was computed from “1d2937” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.