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Recognised as Colour

#03010D

  • #03010D
  • Blue
  • Dark
  • Nearest: Black

#03010D is a blue with RGB values 3, 1, 13 and HSL 250°, 86%, 3%. It is a dark colour, so white text on it reaches 20.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#03010D#03010D
HEX#03010D
RGBrgb(3, 1, 13)
RGB (0–1)0.0118, 0.0039, 0.051
RGB percentages1.2%, 0.4%, 5.1%
HSLhsl(250, 85.7%, 2.7%)
HSV / HSBhsv(250, 92.3%, 5.1%)
CMYK76.9%, 92.3%, 0%, 94.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer196,877
CSS custom property--colour: #03010D;

Brightness & contrast

Relative luminance0.0007WCAG 2.x, 0 is black and 1 is white
Perceived brightness4.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 20.71:1
Contrast with white20.71:1WCAG normal text: AAA
Contrast with black1.01:1WCAG normal text: Fail
Greyscale equivalent#020202
Inverted#FCFEF2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00020Eno red cones; affects about 1% of men; ΔE 1.1 from the original
Deuteranopia#00020Dno green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#010305no blue cones; rare, and affects men and women equally; ΔE 4.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text20.71:1WCAG large text: AAA
Contrast with black, large text1.01:1WCAG large text: Fail

Named colours

Black · ΔE 5Dark slate grey · ΔE 33.7Dim grey · ΔE 44.1Slate grey · ΔE 52.7Gray · ΔE 53.2Dark slateblue · ΔE 53.8
Nearest named CSS colourBlack (#000000)ΔE 5.02, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0B0D01
Analogous#01050D, #09010D
Triadic#0D0301, #010D03
Split complementary#0D0901, #050D01
Tetradic#0D0105, #0B0D01, #010D09

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2F10CA
Lighter +30%#240C9B
Lighter +20%#19086C
Lighter +10%#0E053C
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#02000E
Less saturated −25%#04030B

Channel breakdown

R3
G1
B13
Red3 (1.2%)
Green1 (0.4%)
Blue13 (5.1%)
Hue250°
Saturation (HSL)85.71%
Lightness2.75%
Dominant channelBlue
Hex per channelR 03 · G 01 · B 0D

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Every value on this page was computed from “03010d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.