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Recognised as Colour

#0A1820

  • #0A1820
  • Blue
  • Dark
  • Nearest: Black

#0A1820 is a blue with RGB values 10, 24, 32 and HSL 202°, 52%, 8%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#0A1820#0A1820
HEX#0A1820
RGBrgb(10, 24, 32)
RGB (0–1)0.0392, 0.0941, 0.1255
RGB percentages3.9%, 9.4%, 12.5%
HSLhsl(201.8, 52.4%, 8.2%)
HSV / HSBhsv(201.8, 68.8%, 12.5%)
CMYK68.8%, 25%, 0%, 87.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer661,536
CSS custom property--colour: #0A1820;

Brightness & contrast

Relative luminance0.00822WCAG 2.x, 0 is black and 1 is white
Perceived brightness22 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.03:1
Contrast with white18.03:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#161616
Inverted#F5E7DF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#141820no red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#111520no green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#021A1Bno blue cones; rare, and affects men and women equally; ΔE 6.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.03:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 10.9Dark slate grey · ΔE 25.7Dim grey · ΔE 37.8Slate grey · ΔE 45.5Gray · ΔE 46.8Teal · ΔE 48.4
Nearest named CSS colourBlack (#000000)ΔE 10.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#20120A
Analogous#0A201D, #0A0D20
Triadic#200A18, #18200A
Split complementary#200A0D, #201D0A
Tetradic#1D0A20, #20120A, #0D200A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3B8DBB
Lighter +30%#2E6F95
Lighter +20%#22526E
Lighter +10%#163547
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#051925
Less saturated −25%#0F171B

Channel breakdown

R10
G24
B32
Red10 (3.9%)
Green24 (9.4%)
Blue32 (12.5%)
Hue201.82°
Saturation (HSL)52.38%
Lightness8.24%
Dominant channelBlue
Hex per channelR 0A · G 18 · B 20

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Every value on this page was computed from “0a1820” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.