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Colour

#00312B

  • #00312B
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#00312B is a cyan with RGB values 0, 49, 43 and HSL 173°, 100%, 10%. It is a dark colour, so white text on it reaches 14.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#00312B#00312B
HEX#00312B
RGBrgb(0, 49, 43)
RGB (0–1)0, 0.1922, 0.1686
RGB percentages0%, 19.2%, 16.9%
HSLhsl(172.7, 100%, 9.6%)
HSV / HSBhsv(172.7, 100%, 19.2%)
CMYK100%, 0%, 12.2%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,587
CSS custom property--colour: #00312B;

Brightness & contrast

Relative luminance0.02371WCAG 2.x, 0 is black and 1 is white
Perceived brightness40.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.24:1
Contrast with white14.24:1WCAG normal text: AAA
Contrast with black1.47:1WCAG normal text: Fail
Greyscale equivalent#262626
Inverted#FFCED4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2E2D2Bno red cones; affects about 1% of men; ΔE 17.4 from the original
Deuteranopia#28292Cno green cones; the most common form, about 1% of men; ΔE 17.7 from the original
Tritanopia#00322Fno blue cones; rare, and affects men and women equally; ΔE 2.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.24:1WCAG large text: AAA
Contrast with black, large text1.47:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.3Black · ΔE 24.5Dim grey · ΔE 32.1Teal · ΔE 34Dark cyan · ΔE 38.3Slate grey · ΔE 39.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.32, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#310006
Analogous#003112, #001F31
Triadic#2B0031, #312B00
Split complementary#31001F, #311200
Tetradic#120031, #310006, #1F3100

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#00FDDE
Lighter +30%#00CAB1
Lighter +20%#009785
Lighter +10%#006458
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00312B
Less saturated −25%#062B26

Channel breakdown

R0
G49
B43
Red0 (0%)
Green49 (19.2%)
Blue43 (16.9%)
Hue172.65°
Saturation (HSL)100%
Lightness9.61%
Dominant channelGreen
Hex per channelR 00 · G 31 · B 2B

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Every value on this page was computed from “00312b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.