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Colour

#0A39FA

  • #0A39FA
  • Blue
  • Dark
  • Nearest: Medium blue

#0A39FA is a blue with RGB values 10, 57, 250 and HSL 228°, 96%, 51%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0A39FA#0A39FA
HEX#0A39FA
RGBrgb(10, 57, 250)
RGB (0–1)0.0392, 0.2235, 0.9804
RGB percentages3.9%, 22.4%, 98%
HSLhsl(228.3, 96%, 51%)
HSV / HSBhsv(228.3, 96%, 98%)
CMYK96%, 77.2%, 0%, 2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer670,202
CSS custom property--colour: #0A39FA;

Brightness & contrast

Relative luminance0.09893WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.05:1
Contrast with white7.05:1WCAG normal text: AAA
Contrast with black2.98:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#F5C605

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064FFno red cones; affects about 1% of men; ΔE 29 from the original
Deuteranopia#004DF7no green cones; the most common form, about 1% of men; ΔE 15.1 from the original
Tritanopia#007599no blue cones; rare, and affects men and women equally; ΔE 101.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.05:1WCAG large text: AAA
Contrast with black, large text2.98:1WCAG large text: Fail

Named colours

Medium blue · ΔE 15.1Blue · ΔE 22.9Blue violet · ΔE 23.8Dark violet · ΔE 30.4Dark orchid · ΔE 36.8Dark blue · ΔE 37.1
Nearest named CSS colourMedium blue (#0000CD)ΔE 15.15, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FACB0A
Analogous#0AB1FA, #530AFA
Triadic#FA0A39, #39FA0A
Split complementary#FA530A, #B1FA0A
Tetradic#FA0AB1, #FACB0A, #0AFA53

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D2DBFE
Lighter +30%#A0B2FD
Lighter +20%#6E8AFC
Lighter +10%#3C61FB
Darker −10%#042BCD
Darker −20%#03219B
Darker −30%#021669
Darker −40%#010C37
More saturated +25%#0536FF
Less saturated −25%#294CDB

Channel breakdown

R10
G57
B250
Red10 (3.9%)
Green57 (22.4%)
Blue250 (98%)
Hue228.25°
Saturation (HSL)96%
Lightness50.98%
Dominant channelBlue
Hex per channelR 0A · G 39 · B FA

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Every value on this page was computed from “0a39fa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.