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Colour

#1830EF

  • #1830EF
  • Blue
  • Dark
  • Nearest: Medium blue

#1830EF is a blue with RGB values 24, 48, 239 and HSL 233°, 87%, 52%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1830EF#1830EF
HEX#1830EF
RGBrgb(24, 48, 239)
RGB (0–1)0.0941, 0.1882, 0.9373
RGB percentages9.4%, 18.8%, 93.7%
HSLhsl(233.3, 87%, 51.6%)
HSV / HSBhsv(233.3, 90%, 93.7%)
CMYK90%, 79.9%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,585,391
CSS custom property--colour: #1830EF;

Brightness & contrast

Relative luminance0.0854WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.75:1
Contrast with white7.75:1WCAG normal text: AAA
Contrast with black2.71:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#E7CF10

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005DF4no red cones; affects about 1% of men; ΔE 29.7 from the original
Deuteranopia#0047ECno green cones; the most common form, about 1% of men; ΔE 16.6 from the original
Tritanopia#006D91no blue cones; rare, and affects men and women equally; ΔE 100.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.75:1WCAG large text: AAA
Contrast with black, large text2.71:1WCAG large text: Fail

Named colours

Medium blue · ΔE 11.9Blue violet · ΔE 22.3Blue · ΔE 22.5Dark violet · ΔE 28.4Dark blue · ΔE 34.5Dark orchid · ΔE 35.3
Nearest named CSS colourMedium blue (#0000CD)ΔE 11.86, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EFD718
Analogous#189CEF, #6B18EF
Triadic#EF1830, #30EF18
Split complementary#EF6B18, #9CEF18
Tetradic#EF189C, #EFD718, #18EF6B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D7DBFC
Lighter +30%#A7B0F9
Lighter +20%#7785F6
Lighter +10%#485BF2
Darker −10%#0E22C6
Darker −20%#0A1A97
Darker −30%#071267
Darker −40%#040A37
More saturated +25%#0824FF
Less saturated −25%#3748D0

Channel breakdown

R24
G48
B239
Red24 (9.4%)
Green48 (18.8%)
Blue239 (93.7%)
Hue233.3°
Saturation (HSL)87.04%
Lightness51.57%
Dominant channelBlue
Hex per channelR 18 · G 30 · B EF

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Every value on this page was computed from “1830ef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.