Nerdulator> put something in

Recognised as Colour

#3381EE

  • #3381EE
  • Blue
  • Dark
  • Nearest: Dodgerblue

#3381EE is a blue with RGB values 51, 129, 238 and HSL 215°, 85%, 57%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#3381EE#3381EE
HEX#3381EE
RGBrgb(51, 129, 238)
RGB (0–1)0.2, 0.5059, 0.9333
RGB percentages20%, 50.6%, 93.3%
HSLhsl(215, 84.6%, 56.7%)
HSV / HSBhsv(215, 78.6%, 93.3%)
CMYK78.6%, 45.8%, 0%, 6.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,375,598
CSS custom property--colour: #3381EE;

Brightness & contrast

Relative luminance0.22577WCAG 2.x, 0 is black and 1 is white
Perceived brightness130.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.52:1
Contrast with white3.81:1WCAG normal text: Fail
Contrast with black5.52:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#CC7E11

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#468CF2no red cones; affects about 1% of men; ΔE 6.3 from the original
Deuteranopia#127BECno green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#009BACno blue cones; rare, and affects men and women equally; ΔE 60.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.81:1WCAG large text: AA
Contrast with black, large text5.52:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 6.7Royal blue · ΔE 14.2Cornflower blue · ΔE 15.2Slate blue · ΔE 23.9Medium purple · ΔE 25.2Medium slateblue · ΔE 27.1
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 6.73, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EEA033
Analogous#33DEEE, #4333EE
Triadic#EE3381, #81EE33
Split complementary#EE4333, #DEEE33
Tetradic#EE33DE, #EEA033, #33EE43

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF5FE
Lighter +30%#C0D8FA
Lighter +20%#91BBF6
Lighter +10%#629EF2
Darker −10%#1266DC
Darker −20%#0E50AD
Darker −30%#0A3A7E
Darker −40%#07254E
More saturated +25%#227EFF
Less saturated −25%#4F86D2

Channel breakdown

R51
G129
B238
Red51 (20%)
Green129 (50.6%)
Blue238 (93.3%)
Hue214.97°
Saturation (HSL)84.62%
Lightness56.67%
Dominant channelBlue
Hex per channelR 33 · G 81 · B EE

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 “3381ee” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.