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Colour

#00101A

  • #00101A
  • Blue
  • Dark
  • Nearest: Black

#00101A is a blue with RGB values 0, 16, 26 and HSL 203°, 100%, 5%. It is a dark colour, so white text on it reaches 19.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#00101A#00101A
HEX#00101A
RGBrgb(0, 16, 26)
RGB (0–1)0, 0.0627, 0.102
RGB percentages0%, 6.3%, 10.2%
HSLhsl(203.1, 100%, 5.1%)
HSV / HSBhsv(203.1, 100%, 10.2%)
CMYK100%, 38.5%, 0%, 89.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,122
CSS custom property--colour: #00101A;

Brightness & contrast

Relative luminance0.00445WCAG 2.x, 0 is black and 1 is white
Perceived brightness15.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.28:1
Contrast with white19.28:1WCAG normal text: AAA
Contrast with black1.09:1WCAG normal text: Fail
Greyscale equivalent#0D0D0D
Inverted#FFEFE5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0B101Ano red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#070D1Ano green cones; the most common form, about 1% of men; ΔE 3.4 from the original
Tritanopia#001313no blue cones; rare, and affects men and women equally; ΔE 7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.28:1WCAG large text: AAA
Contrast with black, large text1.09:1WCAG large text: Fail

Named colours

Black · ΔE 9.2Dark slate grey · ΔE 29.2Dim grey · ΔE 41.2Slate grey · ΔE 48.9Gray · ΔE 50.2Teal · ΔE 51.7
Nearest named CSS colourBlack (#000000)ΔE 9.17, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1A0A00
Analogous#001A17, #00031A
Triadic#1A0010, #101A00
Split complementary#1A0003, #1A1700
Tetradic#17001A, #1A0A00, #031A00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#008EE6
Lighter +30%#006EB3
Lighter +20%#004F80
Lighter +10%#002F4D
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00101A
Less saturated −25%#030F17

Channel breakdown

R0
G16
B26
Red0 (0%)
Green16 (6.3%)
Blue26 (10.2%)
Hue203.08°
Saturation (HSL)100%
Lightness5.1%
Dominant channelBlue
Hex per channelR 00 · G 10 · B 1A

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Every value on this page was computed from “00101a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.