Nerdulator> put something in

Recognised as Colour

#1F4898

  • #1F4898
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1F4898 is a blue with RGB values 31, 72, 152 and HSL 220°, 66%, 36%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1F4898#1F4898
HEX#1F4898
RGBrgb(31, 72, 152)
RGB (0–1)0.1216, 0.2824, 0.5961
RGB percentages12.2%, 28.2%, 59.6%
HSLhsl(219.7, 66.1%, 35.9%)
HSV / HSBhsv(219.7, 79.6%, 59.6%)
CMYK79.6%, 52.6%, 0%, 40.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,050,200
CSS custom property--colour: #1F4898;

Brightness & contrast

Relative luminance0.07193WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.61:1
Contrast with white8.61:1WCAG normal text: AAA
Contrast with black2.44:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#E0B767

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#12529Bno red cones; affects about 1% of men; ΔE 7.8 from the original
Deuteranopia#004796no green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#005B69no blue cones; rare, and affects men and women equally; ΔE 47.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.61:1WCAG large text: AAA
Contrast with black, large text2.44:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 11.6Midnight blue · ΔE 22.7Royal blue · ΔE 25.5Slate blue · ΔE 25.8Rebecca purple · ΔE 26.8Cornflower blue · ΔE 30.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.62, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#986F1F
Analogous#1F8498, #331F98
Triadic#981F48, #48981F
Split complementary#98321F, #84981F
Tetradic#981F84, #986F1F, #1F9833

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#99B4EA
Lighter +30%#6E95E2
Lighter +20%#4477D9
Lighter +10%#285CC2
Darker −10%#16346E
Darker −20%#0E2043
Darker −30%#050C19
Darker −40%#000000
More saturated +25%#0841AF
Less saturated −25%#364F81

Channel breakdown

R31
G72
B152
Red31 (12.2%)
Green72 (28.2%)
Blue152 (59.6%)
Hue219.67°
Saturation (HSL)66.12%
Lightness35.88%
Dominant channelBlue
Hex per channelR 1F · G 48 · B 98

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 “1f4898” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.