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Recognised as Colour

#011528

  • #011528
  • Blue
  • Dark
  • Nearest: Black

#011528 is a blue with RGB values 1, 21, 40 and HSL 209°, 95%, 8%. It is a dark colour, so white text on it reaches 18.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#011528#011528
HEX#011528
RGBrgb(1, 21, 40)
RGB (0–1)0.0039, 0.0824, 0.1569
RGB percentages0.4%, 8.2%, 15.7%
HSLhsl(209.2, 95.1%, 8%)
HSV / HSBhsv(209.2, 97.5%, 15.7%)
CMYK97.5%, 47.5%, 0%, 84.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer70,952
CSS custom property--colour: #011528;

Brightness & contrast

Relative luminance0.00696WCAG 2.x, 0 is black and 1 is white
Perceived brightness21 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.43:1
Contrast with white18.43:1WCAG normal text: AAA
Contrast with black1.14:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#FEEAD7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0C1629no red cones; affects about 1% of men; ΔE 3 from the original
Deuteranopia#061228no green cones; the most common form, about 1% of men; ΔE 3.4 from the original
Tritanopia#001A1Cno blue cones; rare, and affects men and women equally; ΔE 13.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.43:1WCAG large text: AAA
Contrast with black, large text1.14:1WCAG large text: Fail

Named colours

Black · ΔE 16.5Dark slate grey · ΔE 29.9Dim grey · ΔE 41.1Dark slateblue · ΔE 44.7Slate grey · ΔE 46.8Midnight blue · ΔE 47.6
Nearest named CSS colourBlack (#000000)ΔE 16.51, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#281401
Analogous#012828, #010128
Triadic#280115, #152801
Split complementary#280101, #282701
Tetradic#280128, #281401, #022801

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#067DEF
Lighter +30%#0563BD
Lighter +20%#03498C
Lighter +10%#022F5A
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001529
Less saturated −25%#061523

Channel breakdown

R1
G21
B40
Red1 (0.4%)
Green21 (8.2%)
Blue40 (15.7%)
Hue209.23°
Saturation (HSL)95.12%
Lightness8.04%
Dominant channelBlue
Hex per channelR 01 · G 15 · B 28

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Every value on this page was computed from “hex 011528” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.