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Colour

#000A1F

  • #000A1F
  • Blue
  • Dark
  • Nearest: Black

#000A1F is a blue with RGB values 0, 10, 31 and HSL 221°, 100%, 6%. It is a dark colour, so white text on it reaches 19.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#000A1F#000A1F
HEX#000A1F
RGBrgb(0, 10, 31)
RGB (0–1)0, 0.0392, 0.1216
RGB percentages0%, 3.9%, 12.2%
HSLhsl(220.6, 100%, 6.1%)
HSV / HSBhsv(220.6, 100%, 12.2%)
CMYK100%, 67.7%, 0%, 87.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,591
CSS custom property--colour: #000A1F;

Brightness & contrast

Relative luminance0.00316WCAG 2.x, 0 is black and 1 is white
Perceived brightness13 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.75:1
Contrast with white19.75:1WCAG normal text: AAA
Contrast with black1.06:1WCAG normal text: Fail
Greyscale equivalent#090909
Inverted#FFF5E0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#010C20no red cones; affects about 1% of men; ΔE 0.6 from the original
Deuteranopia#00091Fno green cones; the most common form, about 1% of men; ΔE 0.5 from the original
Tritanopia#000F12no blue cones; rare, and affects men and women equally; ΔE 12.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.75:1WCAG large text: AAA
Contrast with black, large text1.06:1WCAG large text: Fail

Named colours

Black · ΔE 14.1Dark slate grey · ΔE 33.2Dim grey · ΔE 43.8Dark slateblue · ΔE 46.4Midnight blue · ΔE 48.2Slate grey · ΔE 50.3
Nearest named CSS colourBlack (#000000)ΔE 14.13, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1F1500
Analogous#001A1F, #05001F
Triadic#1F000A, #0A1F00
Split complementary#1F0500, #1A1F00
Tetradic#1F001A, #1F1500, #001F05

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#004CEB
Lighter +30%#003BB8
Lighter +20%#002B85
Lighter +10%#001A52
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000A1F
Less saturated −25%#040B1B

Channel breakdown

R0
G10
B31
Red0 (0%)
Green10 (3.9%)
Blue31 (12.2%)
Hue220.65°
Saturation (HSL)100%
Lightness6.08%
Dominant channelBlue
Hex per channelR 00 · G 0A · B 1F

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Every value on this page was computed from “000a1f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.