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Recognised as Colour

#1F4698

  • #1F4698
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1F4698 is a blue with RGB values 31, 70, 152 and HSL 221°, 66%, 36%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1F4698#1F4698
HEX#1F4698
RGBrgb(31, 70, 152)
RGB (0–1)0.1216, 0.2745, 0.5961
RGB percentages12.2%, 27.5%, 59.6%
HSLhsl(220.7, 66.1%, 35.9%)
HSV / HSBhsv(220.7, 79.6%, 59.6%)
CMYK79.6%, 53.9%, 0%, 40.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,049,688
CSS custom property--colour: #1F4698;

Brightness & contrast

Relative luminance0.06939WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.79:1
Contrast with white8.79:1WCAG normal text: AAA
Contrast with black2.39:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#E0B967

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#07509Bno red cones; affects about 1% of men; ΔE 8.2 from the original
Deuteranopia#004596no green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#005A68no blue cones; rare, and affects men and women equally; ΔE 49 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.79:1WCAG large text: AAA
Contrast with black, large text2.39:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 11Midnight blue · ΔE 21.3Royal blue · ΔE 24.7Slate blue · ΔE 24.8Rebecca purple · ΔE 25.5Medium purple · ΔE 30.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 10.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#98711F
Analogous#1F8398, #351F98
Triadic#981F46, #46981F
Split complementary#98351F, #83981F
Tetradic#981F83, #98711F, #1F9835

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#99B3EA
Lighter +30%#6E94E2
Lighter +20%#4474D9
Lighter +10%#285AC2
Darker −10%#16326E
Darker −20%#0E1F43
Darker −30%#050B19
Darker −40%#000000
More saturated +25%#083EAF
Less saturated −25%#364E81

Channel breakdown

R31
G70
B152
Red31 (12.2%)
Green70 (27.5%)
Blue152 (59.6%)
Hue220.66°
Saturation (HSL)66.12%
Lightness35.88%
Dominant channelBlue
Hex per channelR 1F · G 46 · B 98

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Every value on this page was computed from “1f4698” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.