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Recognised as Colour

#129FF4

  • #129FF4
  • Blue
  • Dark
  • Nearest: Cornflower blue

#129FF4 is a blue with RGB values 18, 159, 244 and HSL 203°, 91%, 51%. It is a dark colour, so black text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#129FF4#129FF4
HEX#129FF4
RGBrgb(18, 159, 244)
RGB (0–1)0.0706, 0.6235, 0.9569
RGB percentages7.1%, 62.4%, 95.7%
HSLhsl(202.6, 91.1%, 51.4%)
HSV / HSBhsv(202.6, 92.6%, 95.7%)
CMYK92.6%, 34.8%, 0%, 4.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,220,596
CSS custom property--colour: #129FF4;

Brightness & contrast

Relative luminance0.31457WCAG 2.x, 0 is black and 1 is white
Perceived brightness147.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.29:1
Contrast with white2.88:1WCAG normal text: Fail
Contrast with black7.29:1WCAG normal text: AAA
Greyscale equivalent#878787
Inverted#ED600B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#76A2F8no red cones; affects about 1% of men; ΔE 13.8 from the original
Deuteranopia#5790F2no green cones; the most common form, about 1% of men; ΔE 15.6 from the original
Tritanopia#00B4BEno blue cones; rare, and affects men and women equally; ΔE 47.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.88:1WCAG large text: Fail
Contrast with black, large text7.29:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 13.1Dodgerblue · ΔE 18.2Deep skyblue · ΔE 19.4Steel blue · ΔE 22.2Light skyblue · ΔE 29.6Royal blue · ΔE 36
Nearest named CSS colourCornflower blue (#6495ED)ΔE 13.14, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F46712
Analogous#12F4D8, #122EF4
Triadic#F4129F, #9FF412
Split complementary#F4122E, #F4D812
Tetradic#D812F4, #F46712, #2EF412

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D5EEFD
Lighter +30%#A4DAFB
Lighter +20%#73C6F9
Lighter +10%#43B3F6
Darker −10%#0981CA
Darker −20%#076299
Darker −30%#054368
Darker −40%#032437
More saturated +25%#07A2FF
Less saturated −25%#3197D5

Channel breakdown

R18
G159
B244
Red18 (7.1%)
Green159 (62.4%)
Blue244 (95.7%)
Hue202.57°
Saturation (HSL)91.13%
Lightness51.37%
Dominant channelBlue
Hex per channelR 12 · G 9F · B F4

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Every value on this page was computed from “129ff4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.