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Recognised as Colour

#0A131B

  • #0A131B
  • Blue
  • Dark
  • Nearest: Black

#0A131B is a blue with RGB values 10, 19, 27 and HSL 208°, 46%, 7%. It is a dark colour, so white text on it reaches 18.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#0A131B#0A131B
HEX#0A131B
RGBrgb(10, 19, 27)
RGB (0–1)0.0392, 0.0745, 0.1059
RGB percentages3.9%, 7.5%, 10.6%
HSLhsl(208.2, 45.9%, 7.3%)
HSV / HSBhsv(208.2, 63%, 10.6%)
CMYK63%, 29.6%, 0%, 89.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer660,251
CSS custom property--colour: #0A131B;

Brightness & contrast

Relative luminance0.00609WCAG 2.x, 0 is black and 1 is white
Perceived brightness18 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.72:1
Contrast with white18.72:1WCAG normal text: AAA
Contrast with black1.12:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#F5ECE4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#10131Bno red cones; affects about 1% of men; ΔE 2 from the original
Deuteranopia#0E111Bno green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#041516no blue cones; rare, and affects men and women equally; ΔE 5.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.72:1WCAG large text: AAA
Contrast with black, large text1.12:1WCAG large text: Fail

Named colours

Black · ΔE 8.6Dark slate grey · ΔE 28Dim grey · ΔE 39.5Slate grey · ΔE 47.5Gray · ΔE 48.5Light slate grey · ΔE 50.6
Nearest named CSS colourBlack (#000000)ΔE 8.56, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B120A
Analogous#0A1B1A, #0A0A1B
Triadic#1B0A13, #131B0A
Split complementary#1B0A0A, #1B1B0A
Tetradic#1A0A1B, #1B120A, #0A1B0A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#417CB0
Lighter +30%#33628B
Lighter +20%#264765
Lighter +10%#182D40
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#051320
Less saturated −25%#0F1316

Channel breakdown

R10
G19
B27
Red10 (3.9%)
Green19 (7.5%)
Blue27 (10.6%)
Hue208.24°
Saturation (HSL)45.95%
Lightness7.25%
Dominant channelBlue
Hex per channelR 0A · G 13 · B 1B

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Every value on this page was computed from “0a131b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.