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Recognised as Colour

#03071F

  • #03071F
  • Blue
  • Dark
  • Nearest: Black

#03071F is a blue with RGB values 3, 7, 31 and HSL 231°, 82%, 7%. It is a dark colour, so white text on it reaches 19.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#03071F#03071F
HEX#03071F
RGBrgb(3, 7, 31)
RGB (0–1)0.0118, 0.0275, 0.1216
RGB percentages1.2%, 2.7%, 12.2%
HSLhsl(231.4, 82.4%, 6.7%)
HSV / HSBhsv(231.4, 90.3%, 12.2%)
CMYK90.3%, 77.4%, 0%, 87.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer198,431
CSS custom property--colour: #03071F;

Brightness & contrast

Relative luminance0.0027WCAG 2.x, 0 is black and 1 is white
Perceived brightness11.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.92:1
Contrast with white19.92:1WCAG normal text: AAA
Contrast with black1.05:1WCAG normal text: Fail
Greyscale equivalent#080808
Inverted#FCF8E0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#000A20no red cones; affects about 1% of men; ΔE 1.7 from the original
Deuteranopia#00081Fno green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#000D11no blue cones; rare, and affects men and women equally; ΔE 13.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.92:1WCAG large text: AAA
Contrast with black, large text1.05:1WCAG large text: Fail

Named colours

Black · ΔE 15.1Dark slate grey · ΔE 34.6Dim grey · ΔE 44.5Dark slateblue · ΔE 45.3Midnight blue · ΔE 46.7Slate grey · ΔE 50.9
Nearest named CSS colourBlack (#000000)ΔE 15.08, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1F1B03
Analogous#03151F, #0D031F
Triadic#1F0307, #071F03
Split complementary#1F0D03, #151F03
Tetradic#1F0315, #1F1B03, #031F0D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1531D9
Lighter +30%#1026AB
Lighter +20%#0C1C7C
Lighter +10%#07114E
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000522
Less saturated −25%#070A1B

Channel breakdown

R3
G7
B31
Red3 (1.2%)
Green7 (2.7%)
Blue31 (12.2%)
Hue231.43°
Saturation (HSL)82.35%
Lightness6.67%
Dominant channelBlue
Hex per channelR 03 · G 07 · B 1F

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Every value on this page was computed from “03071f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.