Colour

#0A1221

#0A1221
Blue
Dark
Nearest: Black

#0A1221 is a blue with RGB values 10, 18, 33 and HSL 219°, 53%, 8%. 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

#0A1221#0A1221

HEX#0A1221

RGBrgb(10, 18, 33)

RGB (0–1)0.0392, 0.0706, 0.1294

RGB percentages3.9%, 7.1%, 12.9%

HSLhsl(219.1, 53.5%, 8.4%)

HSV / HSBhsv(219.1, 69.7%, 12.9%)

CMYK69.7%, 45.5%, 0%, 87.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer660,001

CSS custom property--colour: #0A1221;

Brightness & contrast

Relative luminance0.00607WCAG 2.x, 0 is black and 1 is white

Perceived brightness18.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.73:1

Contrast with white18.73:1WCAG normal text: AAA

Contrast with black1.12:1WCAG normal text: Fail

Greyscale equivalent#111111

Inverted#F5EDDE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0C1322no red cones; affects about 1% of men; ΔE 0.6 from the original

Deuteranopia#091121no green cones; the most common form, about 1% of men; ΔE 0.7 from the original

Tritanopia#021517no blue cones; rare, and affects men and women equally; ΔE 10.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.73:1WCAG large text: AAA

Contrast with black, large text1.12:1WCAG large text: Fail

Named colours

Black · ΔE 12.5 Dark slate grey · ΔE 29.9 Dim grey · ΔE 40.5 Dark slateblue · ΔE 46.9 Slate grey · ΔE 47.5 Gray · ΔE 49.4

Nearest named CSS colourBlack (#000000)ΔE 12.53, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#21190A

Analogous#0A1D21, #0E0A21

Triadic#210A12, #12210A

Split complementary#210E0A, #1D210A

Tetradic#210A1D, #21190A, #0A210E

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#3967BE

Lighter +30%#2E5296

Lighter +20%#223D6F

Lighter +10%#162748

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#051026

Less saturated −25%#0F141C

Channel breakdown

R10

G18

B33

Red10 (3.9%)

Green18 (7.1%)

Blue33 (12.9%)

Hue219.13°

Saturation (HSL)53.49%

Lightness8.43%

Dominant channelBlue

Hex per channelR 0A · G 12 · B 21

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#0A1221

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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