Nerdulator> put something in

Recognised as Colour

#2578DE

  • #2578DE
  • Blue
  • Dark
  • Nearest: Dodgerblue

#2578DE is a blue with RGB values 37, 120, 222 and HSL 213°, 74%, 51%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#2578DE#2578DE
HEX#2578DE
RGBrgb(37, 120, 222)
RGB (0–1)0.1451, 0.4706, 0.8706
RGB percentages14.5%, 47.1%, 87.1%
HSLhsl(213.1, 73.7%, 50.8%)
HSV / HSBhsv(213.1, 83.3%, 87.1%)
CMYK83.3%, 45.9%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,455,774
CSS custom property--colour: #2578DE;

Brightness & contrast

Relative luminance0.191WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.82:1
Contrast with white4.36:1WCAG normal text: Fail
Contrast with black4.82:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#DA8721

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4082E2no red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#0671DCno green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#0091A0no blue cones; rare, and affects men and women equally; ΔE 57.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.36:1WCAG large text: AA
Contrast with black, large text4.82:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 10.1Cornflower blue · ΔE 15Royal blue · ΔE 15.3Slate blue · ΔE 24Medium purple · ΔE 26Medium slateblue · ΔE 29.2
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 10.1, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DE8B25
Analogous#25D5DE, #2E25DE
Triadic#DE2578, #78DE25
Split complementary#DE2F25, #D4DE25
Tetradic#DE25D5, #DE8B25, #25DE2F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D6E6F9
Lighter +30%#AACAF2
Lighter +20%#7EAFEB
Lighter +10%#5193E5
Darker −10%#1B60B5
Darker −20%#154988
Darker −30%#0E315C
Darker −40%#071930
More saturated +25%#0675FD
Less saturated −25%#447BBF

Channel breakdown

R37
G120
B222
Red37 (14.5%)
Green120 (47.1%)
Blue222 (87.1%)
Hue213.08°
Saturation (HSL)73.71%
Lightness50.78%
Dominant channelBlue
Hex per channelR 25 · G 78 · B DE

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “2578de” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.