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Recognised as Colour

#023DA7

  • #023DA7
  • Blue
  • Dark
  • Nearest: Slate blue

#023DA7 is a blue with RGB values 2, 61, 167 and HSL 219°, 98%, 33%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#023DA7#023DA7
HEX#023DA7
RGBrgb(2, 61, 167)
RGB (0–1)0.0078, 0.2392, 0.6549
RGB percentages0.8%, 23.9%, 65.5%
HSLhsl(218.5, 97.6%, 33.1%)
HSV / HSBhsv(218.5, 98.8%, 65.5%)
CMYK98.8%, 63.5%, 0%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer146,855
CSS custom property--colour: #023DA7;

Brightness & contrast

Relative luminance0.0614WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.43:1
Contrast with white9.43:1WCAG normal text: AAA
Contrast with black2.23:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#FDC258

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004DAAno red cones; affects about 1% of men; ΔE 12.3 from the original
Deuteranopia#003FA5no green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#00596Cno blue cones; rare, and affects men and women equally; ΔE 61.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.43:1WCAG large text: AAA
Contrast with black, large text2.23:1WCAG large text: Fail

Named colours

Slate blue · ΔE 17.9Midnight blue · ΔE 18.4Royal blue · ΔE 18.6Dark slateblue · ΔE 19Rebecca purple · ΔE 20.7Navy · ΔE 26.1
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 17.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A76C02
Analogous#0290A7, #1902A7
Triadic#A7023D, #3DA702
Split complementary#A71A02, #8FA702
Tetradic#A70290, #A76C02, #02A71A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#78A7FD
Lighter +30%#4587FD
Lighter +20%#1366FC
Lighter +10%#034FD9
Darker −10%#012B75
Darker −20%#011842
Darker −30%#000610
Darker −40%#000000
More saturated +25%#003CA9
Less saturated −25%#174392

Channel breakdown

R2
G61
B167
Red2 (0.8%)
Green61 (23.9%)
Blue167 (65.5%)
Hue218.55°
Saturation (HSL)97.63%
Lightness33.14%
Dominant channelBlue
Hex per channelR 02 · G 3D · B A7

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Every value on this page was computed from “023da7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.