Nerdulator> put something in

Recognised as Colour

#040AF9

  • #040AF9
  • Blue
  • Dark
  • Nearest: Blue

#040AF9 is a blue with RGB values 4, 10, 249 and HSL 239°, 97%, 50%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#040AF9#040AF9
HEX#040AF9
RGBrgb(4, 10, 249)
RGB (0–1)0.0157, 0.0392, 0.9765
RGB percentages1.6%, 3.9%, 97.6%
HSLhsl(238.5, 96.8%, 49.6%)
HSV / HSBhsv(238.5, 98.4%, 97.6%)
CMYK98.4%, 96%, 0%, 2.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer264,953
CSS custom property--colour: #040AF9;

Brightness & contrast

Relative luminance0.07082WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.69:1
Contrast with white8.69:1WCAG normal text: AAA
Contrast with black2.42:1WCAG normal text: Fail
Greyscale equivalent#1A1A1A
Inverted#FBF506

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0058FFno red cones; affects about 1% of men; ΔE 38.8 from the original
Deuteranopia#003DF6no green cones; the most common form, about 1% of men; ΔE 23.4 from the original
Tritanopia#006993no blue cones; rare, and affects men and women equally; ΔE 114.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.69:1WCAG large text: AAA
Contrast with black, large text2.42:1WCAG large text: Fail

Named colours

Blue · ΔE 4.1Medium blue · ΔE 17.7Blue violet · ΔE 32.5Dark violet · ΔE 35.5Dark orchid · ΔE 47.6Dark blue · ΔE 47.8
Nearest named CSS colourBlue (#0000FF)ΔE 4.11, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F9F304
Analogous#0485F9, #7804F9
Triadic#F9040A, #0AF904
Split complementary#F97804, #85F904
Tetradic#F90485, #F9F304, #04F978

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CBCCFE
Lighter +30%#999BFD
Lighter +20%#666AFD
Lighter +10%#3439FC
Darker −10%#0308C7
Darker −20%#020695
Darker −30%#020462
Darker −40%#010230
More saturated +25%#0006FD
Less saturated −25%#2428D9

Channel breakdown

R4
G10
B249
Red4 (1.6%)
Green10 (3.9%)
Blue249 (97.6%)
Hue238.53°
Saturation (HSL)96.84%
Lightness49.61%
Dominant channelBlue
Hex per channelR 04 · G 0A · B F9

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “040af9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.