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Recognised as Colour

#151A1D

  • #151A1D
  • Blue
  • Dark
  • Nearest: Black

#151A1D is a blue with RGB values 21, 26, 29 and HSL 203°, 16%, 10%. It is a dark colour, so white text on it reaches 17.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#151A1D#151A1D
HEX#151A1D
RGBrgb(21, 26, 29)
RGB (0–1)0.0824, 0.102, 0.1137
RGB percentages8.2%, 10.2%, 11.4%
HSLhsl(202.5, 16%, 9.8%)
HSV / HSBhsv(202.5, 27.6%, 11.4%)
CMYK27.6%, 10.3%, 0%, 88.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,382,941
CSS custom property--colour: #151A1D;

Brightness & contrast

Relative luminance0.00987WCAG 2.x, 0 is black and 1 is white
Perceived brightness25 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.54:1
Contrast with white17.54:1WCAG normal text: AAA
Contrast with black1.2:1WCAG normal text: Fail
Greyscale equivalent#191919
Inverted#EAE5E2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#191A1Dno red cones; affects about 1% of men; ΔE 1.9 from the original
Deuteranopia#17191Dno green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#131B1Bno blue cones; rare, and affects men and women equally; ΔE 2.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.54:1WCAG large text: AAA
Contrast with black, large text1.2:1WCAG large text: Fail

Named colours

Black · ΔE 9.4Dark slate grey · ΔE 24.6Dim grey · ΔE 35.7Slate grey · ΔE 44.6Gray · ΔE 44.8Light slate grey · ΔE 47.8
Nearest named CSS colourBlack (#000000)ΔE 9.45, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1D1815
Analogous#151D1C, #15161D
Triadic#1D151A, #1A1D15
Split complementary#1D1516, #1D1C15
Tetradic#1C151D, #1D1815, #161D15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6B8493
Lighter +30%#556A76
Lighter +20%#404F58
Lighter +10%#2A353B
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0F1C23
Less saturated −25%#191919

Channel breakdown

R21
G26
B29
Red21 (8.2%)
Green26 (10.2%)
Blue29 (11.4%)
Hue202.5°
Saturation (HSL)16%
Lightness9.8%
Dominant channelBlue
Hex per channelR 15 · G 1A · B 1D

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Every value on this page was computed from “151a1d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.