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Recognised as Colour

#1958F4

  • #1958F4
  • Blue
  • Dark
  • Nearest: Medium slateblue

#1958F4 is a blue with RGB values 25, 88, 244 and HSL 223°, 91%, 53%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#1958F4#1958F4
HEX#1958F4
RGBrgb(25, 88, 244)
RGB (0–1)0.098, 0.3451, 0.9569
RGB percentages9.8%, 34.5%, 95.7%
HSLhsl(222.7, 90.9%, 52.7%)
HSV / HSBhsv(222.7, 89.8%, 95.7%)
CMYK89.8%, 63.9%, 0%, 4.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,661,172
CSS custom property--colour: #1958F4;

Brightness & contrast

Relative luminance0.13718WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.61:1
Contrast with white5.61:1WCAG normal text: AA
Contrast with black3.74:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#E6A70B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0072F9no red cones; affects about 1% of men; ΔE 18.6 from the original
Deuteranopia#005EF1no green cones; the most common form, about 1% of men; ΔE 6.5 from the original
Tritanopia#00829Eno blue cones; rare, and affects men and women equally; ΔE 84.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.61:1WCAG large text: AAA
Contrast with black, large text3.74:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 19.1Royal blue · ΔE 22.8Slate blue · ΔE 25.2Blue violet · ΔE 30.3Dark orchid · ΔE 33.3Dark blue · ΔE 33.7
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 19.08, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F4B519
Analogous#19C5F4, #4819F4
Triadic#F41958, #58F419
Split complementary#F44819, #C5F419
Tetradic#F419C5, #F4B519, #19F448

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DCE5FD
Lighter +30%#ABC2FB
Lighter +20%#7A9FF9
Lighter +10%#4A7BF6
Darker −10%#0A43D0
Darker −20%#08339F
Darker −30%#05246F
Darker −40%#03143E
More saturated +25%#0E53FF
Less saturated −25%#3765D6

Channel breakdown

R25
G88
B244
Red25 (9.8%)
Green88 (34.5%)
Blue244 (95.7%)
Hue222.74°
Saturation (HSL)90.87%
Lightness52.75%
Dominant channelBlue
Hex per channelR 19 · G 58 · B F4

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Every value on this page was computed from “1958f4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.