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Recognised as Colour

#10333B

  • #10333B
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#10333B is a cyan with RGB values 16, 51, 59 and HSL 191°, 57%, 15%. It is a dark colour, so white text on it reaches 13.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#10333B#10333B
HEX#10333B
RGBrgb(16, 51, 59)
RGB (0–1)0.0627, 0.2, 0.2314
RGB percentages6.3%, 20%, 23.1%
HSLhsl(191.2, 57.3%, 14.7%)
HSV / HSBhsv(191.2, 72.9%, 23.1%)
CMYK72.9%, 13.6%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,061,691
CSS custom property--colour: #10333B;

Brightness & contrast

Relative luminance0.02794WCAG 2.x, 0 is black and 1 is white
Perceived brightness44.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.47:1
Contrast with white13.47:1WCAG normal text: AAA
Contrast with black1.56:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#EFCCC4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2D313Bno red cones; affects about 1% of men; ΔE 10.6 from the original
Deuteranopia#272D3Bno green cones; the most common form, about 1% of men; ΔE 11 from the original
Tritanopia#003635no blue cones; rare, and affects men and women equally; ΔE 8.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.47:1WCAG large text: AAA
Contrast with black, large text1.56:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.3Black · ΔE 23.1Dim grey · ΔE 28.3Slate grey · ΔE 34.5Teal · ΔE 34.9Gray · ΔE 36.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.26, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3B1810
Analogous#103B2D, #101E3B
Triadic#3B1033, #333B10
Split complementary#3B101E, #3B2D10
Tetradic#2D103B, #3B1810, #1E3B10

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#49B5CE
Lighter +30%#319BB3
Lighter +20%#26788B
Lighter +10%#1B5663
Darker −10%#051013
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#073944
Less saturated −25%#192D32

Channel breakdown

R16
G51
B59
Red16 (6.3%)
Green51 (20%)
Blue59 (23.1%)
Hue191.16°
Saturation (HSL)57.33%
Lightness14.71%
Dominant channelBlue
Hex per channelR 10 · G 33 · B 3B

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Every value on this page was computed from “10333b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.