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Recognised as Colour

#001633

  • #001633
  • Blue
  • Dark
  • Nearest: Black

#001633 is a blue with RGB values 0, 22, 51 and HSL 214°, 100%, 10%. It is a dark colour, so white text on it reaches 18.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#001633#001633
HEX#001633
RGBrgb(0, 22, 51)
RGB (0–1)0, 0.0863, 0.2
RGB percentages0%, 8.6%, 20%
HSLhsl(214.1, 100%, 10%)
HSV / HSBhsv(214.1, 100%, 20%)
CMYK100%, 56.9%, 0%, 80%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,683
CSS custom property--colour: #001633;

Brightness & contrast

Relative luminance0.00813WCAG 2.x, 0 is black and 1 is white
Perceived brightness24.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.06:1
Contrast with white18.06:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#FFE9CC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#051934no red cones; affects about 1% of men; ΔE 2.3 from the original
Deuteranopia#001432no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#001D22no blue cones; rare, and affects men and women equally; ΔE 20.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.06:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 23.4Dark slate grey · ΔE 34.1Dark slateblue · ΔE 37.8Midnight blue · ΔE 39.8Dim grey · ΔE 43.2Steel blue · ΔE 47.1
Nearest named CSS colourBlack (#000000)ΔE 23.4, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#331D00
Analogous#002F33, #030033
Triadic#330016, #163300
Split complementary#330400, #2F3300
Tetradic#330030, #331D00, #003304

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#006EFF
Lighter +30%#0058CC
Lighter +20%#004299
Lighter +10%#002C66
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001633
Less saturated −25%#06172D

Channel breakdown

R0
G22
B51
Red0 (0%)
Green22 (8.6%)
Blue51 (20%)
Hue214.12°
Saturation (HSL)100%
Lightness10%
Dominant channelBlue
Hex per channelR 00 · G 16 · B 33

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Every value on this page was computed from “hex 001633” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.