Recognised as Colour

#03121F

#03121F
Blue
Dark
Nearest: Black

#03121F is a blue with RGB values 3, 18, 31 and HSL 208°, 82%, 7%. It is a dark colour, so white text on it reaches 18.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#03121F#03121F

HEX#03121F

RGBrgb(3, 18, 31)

RGB (0–1)0.0118, 0.0706, 0.1216

RGB percentages1.2%, 7.1%, 12.2%

HSLhsl(207.9, 82.4%, 6.7%)

HSV / HSBhsv(207.9, 90.3%, 12.2%)

CMYK90.3%, 41.9%, 0%, 87.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer201,247

CSS custom property--colour: #03121F;

Brightness & contrast

Relative luminance0.00551WCAG 2.x, 0 is black and 1 is white

Perceived brightness17.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.92:1

Contrast with white18.92:1WCAG normal text: AAA

Contrast with black1.11:1WCAG normal text: Fail

Greyscale equivalent#101010

Inverted#FCEDE0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0C1220no red cones; affects about 1% of men; ΔE 2.8 from the original

Deuteranopia#080F1Fno green cones; the most common form, about 1% of men; ΔE 3.1 from the original

Tritanopia#001517no blue cones; rare, and affects men and women equally; ΔE 8.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.92:1WCAG large text: AAA

Contrast with black, large text1.11:1WCAG large text: Fail

Named colours

Black · ΔE 11.6 Dark slate grey · ΔE 29.2 Dim grey · ΔE 40.8 Slate grey · ΔE 47.9 Dark slateblue · ΔE 49 Gray · ΔE 49.7

Nearest named CSS colourBlack (#000000)ΔE 11.58, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1F1003

Analogous#031F1E, #03041F

Triadic#1F0312, #121F03

Split complementary#1F0304, #1F1E03

Tetradic#1E031F, #1F1003, #041F03

Tints, shades & saturation

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

Lighter +40%#157ED9

Lighter +30%#1063AB

Lighter +20%#0C487C

Lighter +10%#072D4E

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001222

Less saturated −25%#07121B

Channel breakdown

G18

B31

Red3 (1.2%)

Green18 (7.1%)

Blue31 (12.2%)

Hue207.86°

Saturation (HSL)82.35%

Lightness6.67%

Dominant channelBlue

Hex per channelR 03 · G 12 · B 1F

Keep nerding

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

#03121F

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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