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Colour

#3A8BF0

  • #3A8BF0
  • Blue
  • Dark
  • Nearest: Dodgerblue

#3A8BF0 is a blue with RGB values 58, 139, 240 and HSL 213°, 86%, 58%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#3A8BF0#3A8BF0
HEX#3A8BF0
RGBrgb(58, 139, 240)
RGB (0–1)0.2275, 0.5451, 0.9412
RGB percentages22.7%, 54.5%, 94.1%
HSLhsl(213.3, 85.8%, 58.4%)
HSV / HSBhsv(213.3, 75.8%, 94.1%)
CMYK75.8%, 42.1%, 0%, 5.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,836,912
CSS custom property--colour: #3A8BF0;

Brightness & contrast

Relative luminance0.25656WCAG 2.x, 0 is black and 1 is white
Perceived brightness137.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.13:1
Contrast with white3.43:1WCAG normal text: Fail
Contrast with black6.13:1WCAG normal text: AA
Greyscale equivalent#818181
Inverted#C5740F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5994F4no red cones; affects about 1% of men; ΔE 5.5 from the original
Deuteranopia#3883EEno green cones; the most common form, about 1% of men; ΔE 5.3 from the original
Tritanopia#00A3B2no blue cones; rare, and affects men and women equally; ΔE 56.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.43:1WCAG large text: AA
Contrast with black, large text6.13:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 5.9Cornflower blue · ΔE 9.5Royal blue · ΔE 20.6Medium purple · ΔE 28.2Slate blue · ΔE 29Steel blue · ΔE 29.6
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 5.86, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F09F3A
Analogous#3AE6F0, #443AF0
Triadic#F03A8B, #8BF03A
Split complementary#F0443A, #E6F03A
Tetradic#F03AE6, #F09F3A, #3AF044

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F8FBFE
Lighter +30%#C8DFFB
Lighter +20%#99C3F7
Lighter +10%#69A7F4
Darker −10%#1170E6
Darker −20%#0E59B6
Darker −30%#0A4287
Darker −40%#072B57
More saturated +25%#2B89FF
Less saturated −25%#558ED6

Channel breakdown

R58
G139
B240
Red58 (22.7%)
Green139 (54.5%)
Blue240 (94.1%)
Hue213.3°
Saturation (HSL)85.85%
Lightness58.43%
Dominant channelBlue
Hex per channelR 3A · G 8B · B F0

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Every value on this page was computed from “3a8bf0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.