Nerdulator> put something in

Recognised as Colour

#428CAE

  • #428CAE
  • Cyan
  • Dark
  • Nearest: Steel blue

#428CAE is a cyan with RGB values 66, 140, 174 and HSL 199°, 45%, 47%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#428CAE#428CAE
HEX#428CAE
RGBrgb(66, 140, 174)
RGB (0–1)0.2588, 0.549, 0.6824
RGB percentages25.9%, 54.9%, 68.2%
HSLhsl(198.9, 45%, 47.1%)
HSV / HSBhsv(198.9, 62.1%, 68.2%)
CMYK62.1%, 19.5%, 0%, 31.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,361,390
CSS custom property--colour: #428CAE;

Brightness & contrast

Relative luminance0.2297WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.59:1
Contrast with white3.75:1WCAG normal text: Fail
Contrast with black5.59:1WCAG normal text: AA
Greyscale equivalent#7F7F7F
Inverted#BD7351

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7B8AB0no red cones; affects about 1% of men; ΔE 16.6 from the original
Deuteranopia#6C7FAEno green cones; the most common form, about 1% of men; ΔE 17.8 from the original
Tritanopia#009597no blue cones; rare, and affects men and women equally; ΔE 23.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.75:1WCAG large text: AA
Contrast with black, large text5.59:1WCAG large text: AAA

Named colours

Steel blue · ΔE 11.5Light slate grey · ΔE 17.1Slate grey · ΔE 17.7Cadetblue · ΔE 19.7Teal · ΔE 24Dark cyan · ΔE 24.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 11.53, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AE6442
Analogous#42AE9A, #4256AE
Triadic#AE428C, #8CAE42
Split complementary#AE4256, #AE9A42
Tetradic#9A42AE, #AE6442, #56AE42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFE3ED
Lighter +30%#AACEDF
Lighter +20%#85B9D1
Lighter +10%#60A4C3
Darker −10%#346E89
Darker −20%#265064
Darker −30%#18333F
Darker −40%#0A151A
More saturated +25%#2497CC
Less saturated −25%#608190

Channel breakdown

R66
G140
B174
Red66 (25.9%)
Green140 (54.9%)
Blue174 (68.2%)
Hue198.89°
Saturation (HSL)45%
Lightness47.06%
Dominant channelBlue
Hex per channelR 42 · G 8C · B AE

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 “428cae” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.