Nerdulator> put something in

Colour

#1F7DDA

  • #1F7DDA
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1F7DDA is a blue with RGB values 31, 125, 218 and HSL 210°, 75%, 49%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1F7DDA#1F7DDA
HEX#1F7DDA
RGBrgb(31, 125, 218)
RGB (0–1)0.1216, 0.4902, 0.8549
RGB percentages12.2%, 49%, 85.5%
HSLhsl(209.8, 75.1%, 48.8%)
HSV / HSBhsv(209.8, 85.8%, 85.5%)
CMYK85.8%, 42.7%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,063,834
CSS custom property--colour: #1F7DDA;

Brightness & contrast

Relative luminance0.2002WCAG 2.x, 0 is black and 1 is white
Perceived brightness122 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5:1
Contrast with white4.2:1WCAG normal text: Fail
Contrast with black5:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#E08225

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4D84DEno red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#2974D8no green cones; the most common form, about 1% of men; ΔE 6.8 from the original
Tritanopia#0093A1no blue cones; rare, and affects men and women equally; ΔE 51.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.2:1WCAG large text: AA
Contrast with black, large text5:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 11.6Cornflower blue · ΔE 11.6Royal blue · ΔE 21.7Steel blue · ΔE 25.5Slate blue · ΔE 29.3Medium purple · ΔE 29.7
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 11.6, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DA7C1F
Analogous#1FDAD9, #1F20DA
Triadic#DA1F7D, #7DDA1F
Split complementary#DA1F20, #DAD91F
Tetradic#D91FDA, #DA7C1F, #20DA1F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDE3F8
Lighter +30%#A0C9F2
Lighter +20%#74B0EB
Lighter +10%#4796E5
Darker −10%#1963AD
Darker −20%#124A81
Darker −30%#0C3054
Darker −40%#061727
More saturated +25%#007DF9
Less saturated −25%#3E7DBB

Channel breakdown

R31
G125
B218
Red31 (12.2%)
Green125 (49%)
Blue218 (85.5%)
Hue209.84°
Saturation (HSL)75.1%
Lightness48.82%
Dominant channelBlue
Hex per channelR 1F · G 7D · B DA

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 “1f7dda” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.