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Recognised as Colour

#023259

  • #023259
  • Blue
  • Dark
  • Nearest: Dark slate grey

#023259 is a blue with RGB values 2, 50, 89 and HSL 207°, 96%, 18%. It is a dark colour, so white text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#023259#023259
HEX#023259
RGBrgb(2, 50, 89)
RGB (0–1)0.0078, 0.1961, 0.349
RGB percentages0.8%, 19.6%, 34.9%
HSLhsl(206.9, 95.6%, 17.8%)
HSV / HSBhsv(206.9, 97.8%, 34.9%)
CMYK97.8%, 43.8%, 0%, 65.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer143,961
CSS custom property--colour: #023259;

Brightness & contrast

Relative luminance0.03015WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.1:1
Contrast with white13.1:1WCAG normal text: AAA
Contrast with black1.6:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#FDCDA6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1E355Bno red cones; affects about 1% of men; ΔE 4.1 from the original
Deuteranopia#0F2D58no green cones; the most common form, about 1% of men; ΔE 5.1 from the original
Tritanopia#003B41no blue cones; rare, and affects men and women equally; ΔE 25.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.1:1WCAG large text: AAA
Contrast with black, large text1.6:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 29.6Dark slateblue · ΔE 30.2Steel blue · ΔE 33.2Black · ΔE 34.2Dim grey · ΔE 36.8Slate grey · ΔE 37.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 29.64, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#592902
Analogous#025954, #020759
Triadic#590232, #325902
Split complementary#590207, #595402
Tetradic#540259, #592902, #075902

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2D9EFA
Lighter +30%#0586EF
Lighter +20%#046ABD
Lighter +10%#034E8B
Darker −10%#011627
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00325B
Less saturated −25%#0D314E

Channel breakdown

R2
G50
B89
Red2 (0.8%)
Green50 (19.6%)
Blue89 (34.9%)
Hue206.9°
Saturation (HSL)95.6%
Lightness17.84%
Dominant channelBlue
Hex per channelR 02 · G 32 · B 59

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Every value on this page was computed from “hex 023259” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.