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Colour

#0A2F61

  • #0A2F61
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0A2F61 is a blue with RGB values 10, 47, 97 and HSL 214°, 81%, 21%. It is a dark colour, so white text on it reaches 13.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0A2F61#0A2F61
HEX#0A2F61
RGBrgb(10, 47, 97)
RGB (0–1)0.0392, 0.1843, 0.3804
RGB percentages3.9%, 18.4%, 38%
HSLhsl(214.5, 81.3%, 21%)
HSV / HSBhsv(214.5, 89.7%, 38%)
CMYK89.7%, 51.5%, 0%, 62%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer667,489
CSS custom property--colour: #0A2F61;

Brightness & contrast

Relative luminance0.02961WCAG 2.x, 0 is black and 1 is white
Perceived brightness49 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.19:1
Contrast with white13.19:1WCAG normal text: AAA
Contrast with black1.59:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#F5D09E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#123463no red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#002C60no green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#003B43no blue cones; rare, and affects men and women equally; ΔE 32.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.19:1WCAG large text: AAA
Contrast with black, large text1.59:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 22.6Midnight blue · ΔE 28.7Steel blue · ΔE 34.9Dark slate grey · ΔE 37.5Rebecca purple · ΔE 39.4Black · ΔE 39.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 22.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#613C0A
Analogous#0A5B61, #100A61
Triadic#610A2F, #2F610A
Split complementary#61100A, #5B610A
Tetradic#610A5B, #613C0A, #0A6110

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4B8FEC
Lighter +30%#1C73E8
Lighter +20%#145CBD
Lighter +10%#0F458F
Darker −10%#051933
Darker −20%#000205
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002E6B
Less saturated −25%#173154

Channel breakdown

R10
G47
B97
Red10 (3.9%)
Green47 (18.4%)
Blue97 (38%)
Hue214.48°
Saturation (HSL)81.31%
Lightness20.98%
Dominant channelBlue
Hex per channelR 0A · G 2F · B 61

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Every value on this page was computed from “0a2f61” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.