Nerdulator> put something in

Recognised as Colour

#131FDD

  • #131FDD
  • Blue
  • Dark
  • Nearest: Medium blue

#131FDD is a blue with RGB values 19, 31, 221 and HSL 236°, 84%, 47%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#131FDD#131FDD
HEX#131FDD
RGBrgb(19, 31, 221)
RGB (0–1)0.0745, 0.1216, 0.8667
RGB percentages7.5%, 12.2%, 86.7%
HSLhsl(236.4, 84.2%, 47.1%)
HSV / HSBhsv(236.4, 91.4%, 86.7%)
CMYK91.4%, 86%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,253,341
CSS custom property--colour: #131FDD;

Brightness & contrast

Relative luminance0.06339WCAG 2.x, 0 is black and 1 is white
Perceived brightness79 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.26:1
Contrast with white9.26:1WCAG normal text: AAA
Contrast with black2.27:1WCAG normal text: Fail
Greyscale equivalent#2A2A2A
Inverted#ECE022

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0051E2no red cones; affects about 1% of men; ΔE 30.9 from the original
Deuteranopia#003CDAno green cones; the most common form, about 1% of men; ΔE 18.7 from the original
Tritanopia#006184no blue cones; rare, and affects men and women equally; ΔE 99.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.26:1WCAG large text: AAA
Contrast with black, large text2.27:1WCAG large text: Fail

Named colours

Medium blue · ΔE 6.5Blue violet · ΔE 21.9Blue · ΔE 22.4Dark violet · ΔE 26.8Dark blue · ΔE 30.9Dark orchid · ΔE 34.5
Nearest named CSS colourMedium blue (#0000CD)ΔE 6.46, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDD113
Analogous#1384DD, #6C13DD
Triadic#DD131F, #1FDD13
Split complementary#DD6C13, #84DD13
Tetradic#DD1384, #DDD113, #13DD6C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C2C6FA
Lighter +30%#9399F6
Lighter +20%#646DF2
Lighter +10%#3540EE
Darker −10%#0F18AE
Darker −20%#0B127F
Darker −30%#070B50
Darker −40%#030521
More saturated +25%#000EF0
Less saturated −25%#3139BF

Channel breakdown

R19
G31
B221
Red19 (7.5%)
Green31 (12.2%)
Blue221 (86.7%)
Hue236.44°
Saturation (HSL)84.17%
Lightness47.06%
Dominant channelBlue
Hex per channelR 13 · G 1F · B DD

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 “131fdd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.