Colour

#00313B

#00313B
Cyan
Dark
Nearest: Dark slate grey

#00313B is a cyan with RGB values 0, 49, 59 and HSL 190°, 100%, 12%. It is a dark colour, so white text on it reaches 14:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#00313B#00313B

HEX#00313B

RGBrgb(0, 49, 59)

RGB (0–1)0, 0.1922, 0.2314

RGB percentages0%, 19.2%, 23.1%

HSLhsl(190.2, 100%, 11.6%)

HSV / HSBhsv(190.2, 100%, 23.1%)

CMYK100%, 16.9%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,603

CSS custom property--colour: #00313B;

Brightness & contrast

Relative luminance0.02512WCAG 2.x, 0 is black and 1 is white

Perceived brightness42.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.98:1

Contrast with white13.98:1WCAG normal text: AAA

Contrast with black1.5:1WCAG normal text: Fail

Greyscale equivalent#272727

Inverted#FFCEC4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2A2F3Cno red cones; affects about 1% of men; ΔE 12.7 from the original

Deuteranopia#232A3Bno green cones; the most common form, about 1% of men; ΔE 13.2 from the original

Tritanopia#003534no 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 text13.98:1WCAG large text: AAA

Contrast with black, large text1.5:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15 Black · ΔE 23.6 Dim grey · ΔE 30.6 Teal · ΔE 35.2 Slate grey · ΔE 36 Gray · ΔE 38.8

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.01, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3B0A00

Analogous#003B27, #00143B

Triadic#3B0031, #313B00

Split complementary#3B0014, #3B2700

Tetradic#27003B, #3B0A00, #143B00

Tints, shades & saturation

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

Lighter +40%#08D5FF

Lighter +30%#00B0D4

Lighter +20%#0086A1

Lighter +10%#005B6E

Darker −10%#000708

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00313B

Less saturated −25%#072C34

Channel breakdown

G49

B59

Red0 (0%)

Green49 (19.2%)

Blue59 (23.1%)

Hue190.17°

Saturation (HSL)100%

Lightness11.57%

Dominant channelBlue

Hex per channelR 00 · G 31 · B 3B

Keep nerding

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

#00313B

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

Nerdulate something else