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Recognised as Colour

#001033

  • #001033
  • Blue
  • Dark
  • Nearest: Black

#001033 is a blue with RGB values 0, 16, 51 and HSL 221°, 100%, 10%. It is a dark colour, so white text on it reaches 18.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#001033#001033
HEX#001033
RGBrgb(0, 16, 51)
RGB (0–1)0, 0.0627, 0.2
RGB percentages0%, 6.3%, 20%
HSLhsl(221.2, 100%, 10%)
HSV / HSBhsv(221.2, 100%, 20%)
CMYK100%, 68.6%, 0%, 80%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,147
CSS custom property--colour: #001033;

Brightness & contrast

Relative luminance0.0061WCAG 2.x, 0 is black and 1 is white
Perceived brightness21.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.72:1
Contrast with white18.72:1WCAG normal text: AAA
Contrast with black1.12:1WCAG normal text: Fail
Greyscale equivalent#0F0F0F
Inverted#FFEFCC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001534no red cones; affects about 1% of men; ΔE 3.5 from the original
Deuteranopia#001032no green cones; the most common form, about 1% of men; ΔE 0.8 from the original
Tritanopia#00191Fno blue cones; rare, and affects men and women equally; ΔE 23.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.72:1WCAG large text: AAA
Contrast with black, large text1.12:1WCAG large text: Fail

Named colours

Black · ΔE 26.6Dark slateblue · ΔE 35.5Midnight blue · ΔE 35.7Dark slate grey · ΔE 38.8Dim grey · ΔE 46.8Steel blue · ΔE 49.1
Nearest named CSS colourBlack (#000000)ΔE 26.63, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#332300
Analogous#002933, #0A0033
Triadic#330010, #103300
Split complementary#330A00, #293300
Tetradic#330029, #332300, #00330A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0050FF
Lighter +30%#0040CC
Lighter +20%#003099
Lighter +10%#002066
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001033
Less saturated −25%#06122D

Channel breakdown

R0
G16
B51
Red0 (0%)
Green16 (6.3%)
Blue51 (20%)
Hue221.18°
Saturation (HSL)100%
Lightness10%
Dominant channelBlue
Hex per channelR 00 · G 10 · B 33

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Every value on this page was computed from “hex 001033” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.