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Recognised as Colour

#2564C0

  • #2564C0
  • Blue
  • Dark
  • Nearest: Royal blue

#2564C0 is a blue with RGB values 37, 100, 192 and HSL 216°, 68%, 45%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#2564C0#2564C0
HEX#2564C0
RGBrgb(37, 100, 192)
RGB (0–1)0.1451, 0.3922, 0.7529
RGB percentages14.5%, 39.2%, 75.3%
HSLhsl(215.6, 67.7%, 44.9%)
HSV / HSBhsv(215.6, 80.7%, 75.3%)
CMYK80.7%, 47.9%, 0%, 24.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,450,624
CSS custom property--colour: #2564C0;

Brightness & contrast

Relative luminance0.13313WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.73:1
Contrast with white5.73:1WCAG normal text: AA
Contrast with black3.66:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#DA9B3F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2F6EC3no red cones; affects about 1% of men; ΔE 6.4 from the original
Deuteranopia#0060BEno green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#007A89no blue cones; rare, and affects men and women equally; ΔE 52.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.73:1WCAG large text: AAA
Contrast with black, large text3.66:1WCAG large text: AA

Named colours

Royal blue · ΔE 17.4Dodgerblue · ΔE 19.2Cornflower blue · ΔE 19.8Dark slateblue · ΔE 21Slate blue · ΔE 22.6Medium purple · ΔE 26
Nearest named CSS colourRoyal blue (#4169E1)ΔE 17.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C08125
Analogous#25B1C0, #3425C0
Triadic#C02564, #64C025
Split complementary#C03425, #B1C025
Tetradic#C025B1, #C08125, #25C034

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BED4F3
Lighter +30%#94B7EA
Lighter +20%#699AE2
Lighter +10%#3E7DDA
Darker −10%#1D4E95
Darker −20%#15376A
Darker −30%#0C2140
Darker −40%#040B15
More saturated +25%#085FDD
Less saturated −25%#4269A3

Channel breakdown

R37
G100
B192
Red37 (14.5%)
Green100 (39.2%)
Blue192 (75.3%)
Hue215.61°
Saturation (HSL)67.69%
Lightness44.9%
Dominant channelBlue
Hex per channelR 25 · G 64 · B C0

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Every value on this page was computed from “2564c0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.